共 50 条
- [26] SEPARATOR THEOREMS FOR PLANAR GRAPHS DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1981, 34 (02): : 163 - 164
- [30] COMPLETENESS THEOREMS IN THEORIES ON GRAPHS COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE A, 1977, 284 (06): : 355 - 358