共 50 条
- [22] TRANSFORMATION OF POSITIVE FUNCTIONS BY LINEAR-OPERATORS IEEE TRANSACTIONS ON CIRCUIT THEORY, 1972, CT19 (05): : 460 - &
- [25] POSITIVE LINEAR-OPERATORS AND METHOD OF TEST FUNCTIONS COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L ACADEMIE DES SCIENCES SERIE A, 1974, 278 (03): : 149 - 152