Ahola, P. 1993. Chemical and Physical Changes in Paints or Pained Wood Due to Ageing. VTT Technical Research Centre, Espoo.

Apals, J., Atgāzis, M., Daiga, J., Deņisova, R., Graudonis, J., Loze, I., Mugurēvičs, Ē., Aveling, E. M. & Heron, C. 1974. Chewing tar in the early Holocene: an archaeological and ethnographic evaluation. – Antiquity, 73, 579–584.

Derrick, M. R., Stulik, D. & Landry, J. M. 1999. Infrared Spectroscopy in Conservation Science. The Getty Conservation Institute, Los Angeles.

Grewingk, C. 1882. Geologie und Archaeologie des Mergellagers von Kunda in Estland. (Archiv für die Naturkunde Liv-, Est- und Kurlands, I.) Dorpat.

Jaanits, L., Laul, S., Lõugas, V. & Tõnisson, E. 1982. Eesti esiajalugu. Eesti Raamat, Tallinn.

Kivimäe, J., Kriiska, A., Põltsam, I. & Vunk, A. 1998.Merelinn Pärnu. Pärnu Linnavalitsus, Pärnu.

Koller, J., Baumer, U. & Mania, D. 2001. High-tech in the middle Palaeolithic: neandertal­manufactured pitch identified. – European Journal of Archaeology,4, 385–397.
doi:10.1177/146195710100400315

Kopisto, A. 1963. Vähän lisää purupihkasta. – Kotiseutu, 6, 206.

Matyushin, G. N. 1989. = Матюшин Г. Н. Мезолит Южного Приуралья. – Мезолит СССР. Ed. Л. В. Кольцов. (Археология СССР.) Наука, Москва. 

Meilunas, R. J., Bentsen, J. G. & Steinberg, A. 1990. Analysis of aged paint binders by FTIR spectroscopy. – Studies in Conservation, 35, 33–51.
doi:10.2307/1506280

Nykänen, P. & Seppä, J. 1997. Koivutervan valmistus ja käyttö. – Muinaistutkija, 1, 25–32.

Oshibkina, S. V. 1997. = Ошибкина С. В. Веретье I. Поселение эпохи мезолита на севере Восточной Европы. Наука, Москва.

Pälsi, S. 1932. Kivikautista purupihkaa. – Suomen Museo, 1931–1932, 64.

Pesonen, P. 1994. Tervanpolton juurilla – koivutervan käyttö saviastian korjauksessa kivikaudella. – Tekniikan waiheita, 1, 4–7.

Pesonen, P. 1999. Radiocarbon dating of birch bark pitches in typical Comb Ware in Finland. – Dig it All. Papers Dedicated to Ari Siiriäinen. Ed. M. Huurre. The Finnish Antiquarian Society, The Archaeological Society of Finland, Helsinki, 191–197.

Poska, A. 2001. Human impact on vegetation of coastal Estonia during the Stone Age. (Acta Universitatis Upsaliensis. Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, 652.)Uppsala.

Regert, M., Alexandre, V., Thomas, N. & Lattuati-Derieux, A. 2006. First results on headspace-solid phase microextraction-gas chromatography/mass spectrometry of volatile organic compounds emitted by wax objects in museums. – Journal of Chromatography A, 1101: 1–2, 245–253.

Regert, M., Garnier, N., Decavallas, O., Cren-Olivé, C. & Rolando, C. 2003.Structural charac­terization of lipid constituents from natural substances preserved in archaeological environments. – Measurement Science and Technology, 14, 1620–1630.
doi:10.1088/0957-0233/14/9/313

Reunanen, M. & Holmbom, B. 1999. Analysis of the pitch sample. – Dig it All. Papers Dedicated to Ari Siiriäinen. Ed. M. Huurre. The Finnish Antiquarian Society, The Archaeological Society of Finland, Helsinki, 197–199.

Rimantene, R. K. 1971. = Римантене Р. К. Палеолит и мезолит Литвы. Вильнюс.

Smith, B. 1999. Infrared Spectral Interpretation. Asystematic Approach. CRC Press, London.

Stacey, R. 2004. Evidence for the use of birch-bark tar from Iron Age Britain. – Past. The News­letter of the Prehistoric Society, 14, 1–2. http://www.ucl.ac.uk/prehistoric/past/past47.html 09.03.2009.

Vahur, S., Virro, K. & Leito, I. 2005. Web-based infrared spectral databases relevant to conservation. – CAC, Journal, 10–17.

Vankina, L. 1999. The collection of Stone Age bone and antler artifacts from Lake Lubāna. Catalogue. (Latvijas Vēstures Muzeja raksti, 4. Arheoloģija.) Latvijas Vēstures Muzeja, Rīga.

Veski, S., Heinsalu, A., Klassen, V., Kriiska, A., Lõugas, L., Poska, A. & Saluäär, U. 2005. Early Holocene coastal settlements and palaeoenvironment on the shore of the Baltic Sea at Pärnu, southwestern Estonia. – Quaternary International, 130, 75–85.
doi:10.1016/j.quaint.2004.04.033