Mark, Robert, and Evelyn Billo, 2011, GigaPan panoramas for rock art panel documentation: a practical guide, Rock Art Research, V. 28, No. 2. pp. 265-267. (RAR_Gigapan.pdf)

Billo, E., Mark, R., and Greer, J., 2011, Hunters Shelter and White Oaks Spring Pictographs:Pecos Miniature Art in the Guadalupe Mountains of Southern New MexicoAmerican Indian Rock Art, Volume 37. Mavis Greer, John Greer, and Peggy Whitehead, Editors. American Rock Art Research Association, 2011, pp. 49–74. (Hunters Shelter and White Oaks Spring Pictographs.pdf)

Mark, R. y M. Strecker, 2010, Aplicaciones del Mejoramiento Digital de Imágenes en la Documentación de Arte Rupestre de Betanzos, Bolivia, p. 60-67.

Mark, R., and Billo, E., 2009, Pictographs at Hunters Shelter: Possible Extension of the Red Linear Style into the Guadalupe Mountains of Southern New Mexico, Plains Anthropologist, Vol. 54, No. 211, pp. 201–210. (http://files.me.com/rkmark/140nct)

Billo, E., Mark, R., and Weaver, Jr., D. E., 2008, Sears Point Rock Art Recording Project Interim Report, 24 p.

Mark, R., and Billo, E., 2006, Computer-Assisted Documentation of Rock Art: CSIC Thematic Network on Cultural Heritage, Coalition Electronic Newsletter, no. 11, p. 10-14. (http://www.rtphc.csic.es/PDF/NL11.pdf)

Mark, R., and Billo, E., 2004, Seminole Canyon State Park and Historic Site Rock Image Site Overview: An Interactive Acrobat File: report to Texas Dept. of Parks and Wildlife, 275 p. 

Mark, R., and Billo, E., 2004, Historic Rock Art Boulders and Panels (interactive Acrobat file): report for Pinyon Canyon Maneuver Site, 268 p.

Loendorf, L., Billo, E.,and  Mark, R., 2003, Landscape and Ceremonial Cave Rock Art: Change Through Time: report to  Canyon de Chelly National Monument, 143 p.

Billo, E., and Mark, R. 2003, Post-fire Documentation of Rock Art Site 48WE33, Methods and Observations: report to Wyoming BLM, 35 p.

Mark, R. K., and Billo, E., 2002, Application of Digital Image Enhancement in Rock Art Recording, American Indian Rock Art V. 28, 121-128. 1.6 MB PDF File available.

Mark, R., and Billo, E., 2002, Aplicación del mejoramiento digital de imágenes en la documentación de arte rupestre, in Docunentación y Registro del Arte Rupestre, pp. 142-153.

Loendorf, L., Billo, E., and Mark, R., 2002, Rock Art Research Design (Draft): report to  Canyon de Chelly National Park, 62 p.

Billo, E., and Mark, R. 2002, Burn Impact Study, Sites CrNV-22-3910 and CrNV-02-1318, Methods, Observations, and Suggested Mitigation: report to Winnemucca Nevada BLM

Mark, R., and Billo, E., 2001, Digital Image Enhancement in Rock Art Recording (poster). Abstracts of the 66th Annual Meeting, Society for American Archaeology, New Orleans, p. 242.

Billo, E., Mark, R., Feruglio, V., Moody, T., Loendorf, L., and Karpinski, L., 2001, Canyon de Chelly: Condition Assessment and Documentation, presented at the 28th Annual Conf, ARARA, Pendelton, OR.

Weaver, D., Mark, R.K., and Billo, E., 2001, Inscription Point: Too Little, Too Late?, 27th Annual ARARA Rock Art Conference, Phoenix, AZ, American Indian Rock Art v. 27, p. 137-150.

Harry, K., Billo, E., and Mark, R.K., 2001, The Challenge of Long-Term Preservation: Managing Human Impacts to Rock Art at Hueco Tanks State Historical Park, 27th Annual ARARA Rock Art Conference, Phoenix, AZ, American Indian Rock Art v. 27, p. 151-159.

Mark, R.K., & Billo, E., 2000, GPS, GIS, and Image Enhancement, 27th Annual ARARA Rock Art Conference, Phoenix, AZ.

Billo, E., Karpinski, L., Loendorf, L., and Mark, R.K., 2000, Prototype Condition Assessment and Documentation of Rock Images at Blue Bull Cave, Canyon de Chelly National Monument, NPS CR2000 Santa Fe, NM & 73rd Pecos Conference, Mesa Verde, CO.

Mark, R.K. & Billo, E., 2000, Applications of GPS, GIS, and Digital Image Enhancement in Rock Art Recording, IRAC'00, 13th International Rock Art Congress Alice Springs, NT, Australia.

Billo, E., 2000, Hueco Tanks Pictographs: A GPS/GIS Project, 20th URARA annual meeting keynote address Moab, UT.

Rupestrian CyberServices, 2000, Multimedia Interpretive CD of Deer Valley Rock Art Center, Phoenix, AZ.

Billo, E., & Mark, R.K., 1999, Wind River Petroglyph Recording and Database Project, San Diego Museum of Man Rock Art Conference, San Diego, CA.

Gillette, D., Billo, E., and Mark, R.K., 2000, From Gang Hangout to Educational Resource &endash; Reclaiming a Cultural Treasure 1999 International Rock Art Congress Proceedings v. 1. p. 47-52.

Mark, R.K., and Billo, E., 1999, Wind River Petroglyph Recording and Database Project: IRAC'99, 12th International Rock Art Congress, Ripon, WI.

Billo, E., 1999, Variations in Human Figures in Rock Art of the World: Keynote Address, IRAC'99, 12th International Rock Art Congress, Ripon, WI.

Billo, E., and Mark, R. K., 1999, Hueco Tanks Pictographs: A GPS/GIS Project: 72nd Pecos Conference, Pinedale, Arizona.

Mark, R.K., and Billo, E., 1999, A Stitch in Time: Digital Panoramas and Mosaics: American Indian Rock Art, v. 25, p. 155-168. A 4.5 MB PDF file is available.

Billo, E., and Mark, R. K., 1998, GIS and Multimedia for Rock Art Research, Management, and Interpretation at the Grand Staircase-Escalante National Monument (Poster Abs.): in Learning from the Land, GSENM Science Symposium Proceedings 1997, Hill, L. M. editor, p. 469-470.

Mark, R., and Billo, E., 1998, Two Stray Quadrupeds at Weitchpec, in Ken Hedges, ed., Rock Art Papers, Vol. 13, San Diego Museum Papers 35, p. 155-156.

Mark, R.K., 1997, Rotatable Images of the Solid Planets and Satellites of the Solar System (SSGlobes): US Geological Survey Open-File Report 97-273, CD-ROM.

Mark, R.K., and Newman, E.B., 1997, The IFRAO Color Scale: Some Considerations: Proceedings of 1996 International Rock Art Congress, Namibia, p. 28-31. A PDF file is available.

Newman, E.B., and Mark, R.K., 1996, Conservation and Management at three publicly owned California rock art sites: International Rock Art Congress, Swakopmund, Namibia

Mark, R. K. and Newman, E.B., 1996, Using Digital Images to Aid Site Management, Research Studies, and Visitor Interpretation: 1996 International Rock Art Congress, Swakopmund, Namibia

Mark, R.K., and Rogers, B.W. 1996, Bulgarian archaeoastronomy site or Bulgarian quarry site?: Journal of Caves and Karst Studies, v. 58(1), p. 55-57.

Mark, R.K., and Newman, E.B., 1995, Cup-and-ring petroglyphs in northern California and beyond: in J. Steinbring, Ed., Rock Art Studies in the Americas, p. 13-21, Oxbow Press, Oxford.

Newman, E.B., Mark, R.K., in press, Rescuing the Photo Archive: A Digital Perspective: in proceedings of the 1994 International Rock Art Congress, Flagstaff, AZ.

Mark, R.K., and Newman, E.B., 1994, Management of petroglyph rubbing at two Pacific Northwest Coast Sites: American Indian Rock Art, v. XX, p. 19-24.

Mark, R.K., and Newman, E.B., 1993, Computer-graphics assisted recording Uvas Creek petroglyph site: American Indian Rock Art, v. XII, p. 137-144

Mark, R. K., and E.B. Newman, 1990, CA-SBN-12 Reexamined: Rock Art Papers, San Diego Museum of Man, v. 7, p. 49-52

Mark, R.K., and Newman, 1990, Evaluation of the solar marker changes on Fajada Butte, Chaco Canyon, New Mexico (Abs.): Annual Conference of the American Rock Art Research Assn.

Trott, J.J., R.K. Mark, D.B. Fenn, and C. Werito, 1989, Evaluation of Status of site 29 SJ 2389, Chaco Culture National Historic Park: National Park Service Administrative Report, 26 p.

Newman, E.B., and Mark, R.K., 1987, Three geographically and artistically diverse rock art sites in Papua New Guinea: Conference for the AURA Congress, Darwin, Australia, Aug. - Sept. 1988.

Mark, R.K., and Newman, E.B., 1987, Some observations on Rock Art Conservation in Spain: : in Helen Crotty, ed., Preserving Our Rock Art Heritage, American Rock Art Research Assn. Occasional Paper 1, p. 65-70.

Newman, E.B., and Mark, R.K., 1986, Uvas Creek (CA-SCL-111): A unique petroglyph site in the San Francisco bay area, California: Rock Art Papers, v. 3, San Diego Museum of Man, p. 191-200

Newman, E. B., and Mark, R. K., 1984, Chaco Canyon: A visual overview: International conference on prehistoric rock art and archaeoastronomy, Little Rock, Arkansas.

Newman, E. B., and Mark, R. K., 1984, Three geographically and artistically diverse rock art sites in Papua New Guinea: Annual symposium of the American Rock Art Research Association.

Newman, E. B., Mark, R. K., and Vivian, R. G., 1982, Anasazi solstice marker: Astronomical use of a natural rockfall: Annual Meeting of the Geological Society of America, p. 576.

Newman, E. B., Mark, R. K., and Vivian, R. G., 1982, Anasazi solstice marker: The use of a natural rockfall: Science, v. 217, p. 1036-1038.