http://www.palaeontologia.pan.pl/pp-current_volume.htm
Dzik, J. and Sulej, T. 2007. A review of the early Late Triassic KrasiejĂłw biota from Silesia, Poland. Palaeontologia Polonica 64, 3-27.
http://www.palaeontologia.pan.pl/PP64/Dzik.pdf
Sulej, T. 2007. Osteology, variability, and evolution of Metoposaurus, a temnospondyl from the Late Triassic of Poland. Palaeontologia Polonica 64, 29–139.
http://www.palaeontologia.pan.pl/PP64/Sulej.pdf