共 50 条
- [47] CANONICAL-FORMS AND HIERARCHIES IN GENERALIZED RECURSION-THEORY PROCEEDINGS OF SYMPOSIA IN PURE MATHEMATICS, 1985, 42 : 139 - 170
- [50] CANONICAL-FORMS AND SOLVABLE SINGULAR SYSTEMS OF DIFFERENTIAL-EQUATIONS SIAM JOURNAL ON ALGEBRAIC AND DISCRETE METHODS, 1983, 4 (04): : 517 - 521