XI. International Conference on Phosphorus Chemistry : Tallinn, USSR, July 3-7, 1989 : list of participants / conference chairman M.Veiderma1989 https://www.ester.ee/record=b2094907*est

Program of the XI. International Conference on Phosphorus Chemistry : Tallinn, USSR, July 3-7, 1989 / conference chairman M.Veiderma1989 https://www.ester.ee/record=b2094910*est