Worobiec E., Szulc J. 2020. Palynology of Oligocene lignites in two karst palaeosinkholes at Górażdże, Upper Silesia, Poland. Annales Societatis Geologorum Poloniae 90: 495–504. DOI
Worobiec E., Szulc J. 2020. Palynology of Oligocene lignites in two karst palaeosinkholes at Górażdże, Upper Silesia, Poland. Annales Societatis Geologorum Poloniae 90: 495–504. DOI