@article{RAS:SourceID:175974, author = {Markov, A. V.}, journal = {Trudy Paleontologicheskogo Instituta}, pages = {1-94}, title = {Morphology, systematics and phylogeny of schizasterid sea urchins}, url = {https://ras.biodiversity.aq/aphia.php?p=sourcedetails&id=175974}, volume = {258}, year = {1994} }