Dillon, Robert T.; Wethington, Amy R.; Rhett, J. Matthew; Smith, Thomas P. (2005). "Populations of the European freshwater pulmonate Physa acuta are not reproductively isolated from American Physa heterostropha or Physa integra". Invertebrate Biology. 121 (3): 226–234. doi:10.1111/j.1744-7410.2002.tb00062.x.
Razkin, O.; Sonet, G.; Breugelmans, K.; Madeira, M.J.; Gómez-Moliner, B.J.; Backeljau, T. (August 2016). "Species limits, interspecific hybridization and phylogeny in the cryptic land snail complex Pyramidula: The power of RADseq data". Molecular Phylogenetics and Evolution. 101: 267–278. doi:10.1016/j.ympev.2016.05.002. hdl:10067/1346230151162165141. PMID27177931.
Groh, Klaus; Bössneck, Ulrich; Clewing, Catharina; Albrecht, Christian; Richling, Ira (5 May 2020). "A new pill clam from an unusual habitat: the interstitial Pisidium interstitialis n. sp. (Bivalvia: Sphaeriidae) from southwestern and Central Germany". Journal of Molluscan Studies. 86 (2): 104–119. doi:10.1093/mollus/eyz036.
handle.net
hdl.handle.net
Razkin, O.; Sonet, G.; Breugelmans, K.; Madeira, M.J.; Gómez-Moliner, B.J.; Backeljau, T. (August 2016). "Species limits, interspecific hybridization and phylogeny in the cryptic land snail complex Pyramidula: The power of RADseq data". Molecular Phylogenetics and Evolution. 101: 267–278. doi:10.1016/j.ympev.2016.05.002. hdl:10067/1346230151162165141. PMID27177931.
Razkin, O.; Sonet, G.; Breugelmans, K.; Madeira, M.J.; Gómez-Moliner, B.J.; Backeljau, T. (August 2016). "Species limits, interspecific hybridization and phylogeny in the cryptic land snail complex Pyramidula: The power of RADseq data". Molecular Phylogenetics and Evolution. 101: 267–278. doi:10.1016/j.ympev.2016.05.002. hdl:10067/1346230151162165141. PMID27177931.
