A POSSIBLE VARIATIONAL SCHEME FOR THE COMBINED QUARTIC-CUBIC OSCILLATOR
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, Vol. 106, No. 7, 1991, s. 701-709, ISSN: 0369-3554
ÖZER HAKKI TUNÇAY