Intercontinental Club for Plastics Use in Building and Building Engineering, International Union of Testing and Research Laboratories for Materials and Structures, Institut für das Bauen mit Kunststoffen, Bares, R. A., & Bareš, R. (1982). Plastics in material and structural engineering: : proceedings of the ICP/RILEM/IBK international symposium, Prague, June 23-25, 1981. Elsevier Scientific Pub. Co.

Intercontinental Club for Plastics Use in Building and Building Engineering, International Union of Testing and Research Laboratories for Materials and Structures, Institut für das Bauen mit Kunststoffen, Richard A. Bares, and Richard Bareš. Plastics in Material and Structural Engineering: : Proceedings of the ICP/RILEM/IBK International Symposium, Prague, June 23-25, 1981. Amsterdam: Elsevier Scientific Pub. Co, 1982.

Intercontinental Club for Plastics Use in Building and Building Engineering, et al. Plastics in Material and Structural Engineering: : Proceedings of the ICP/RILEM/IBK International Symposium, Prague, June 23-25, 1981. Elsevier Scientific Pub. Co, 1982.