2007 | ||
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2 | EE | E. S. Shemyakova, F. Wincler: Obstacles to factorization of partial differential operators into several factors. Programming and Computer Software 33(2): 67-73 (2007) |
2004 | ||
1 | EE | E. S. Shemyakova: Involutive Divisions. Graphs. Programming and Computer Software 30(2): 68-74 (2004) |
1 | F. Wincler | [2] |