Buczkowska K., Sawicki J., Szczecińska M., Klama H., Bączkiewicz A. 2012. Allopolyploid speciation of Calypogeia sphagnicola (Jungermanniopsida, Calypogeiaceae) based on isozyme and DNA markers. Plant Systematics and Evolution. 298(3): 549-60. doi:10.1007/s00606-011-0565-5

Buczkowska K., Sawicki J., Szczecińska M., Klama H., Bączkiewicz A. 2012. Allopolyploid speciation of Calypogeia sphagnicola (Jungermanniopsida, Calypogeiaceae) based on isozyme and DNA markers. Plant Systematics and Evolution. 298(3): 549-60. doi:10.1007/s00606-011-0565-5