Theory web page at the Mathematics Department of the Ohio State University (retrieved on 25 October 2009). . The 1941 obituary of Nikolai Günther written by Vladimir Smirnov and Sergei Sobolev, including a list of his mathematical works. , appendix to the book . Scientific references . . A freely accessible copy is available from the here from the Gröbner Bases Bibliography. 1871 births 1941 deaths Mathematicians from Saint Petersburg Corresponding Members of the USSR Academy of Sciences 19th-century mathematicians from the Russian Empire 20th-century Russian mathematicians Mathematical analysts PDE theorists