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- [4] EXISTENCE OF POSITIVE SOLUTIONS FOR 4TH-ORDER NONLINEAR PROBLEMS BOLLETTINO DELLA UNIONE MATEMATICA ITALIANA, 1987, 1B (04): : 1129 - 1138
- [8] 4TH-ORDER NONLINEAR OSCILLATIONS JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES, 1976, 14 (OCT): : 91 - 105
- [9] UNIQUENESS OF POSITIVE SOLUTIONS FOR SOME NONLINEAR 4TH-ORDER EQUATIONS COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE I-MATHEMATIQUE, 1995, 321 (07): : 843 - 848
- [10] A 4TH-ORDER EXTRAPOLATION METHOD FOR SPECIAL NONLINEAR 4TH-ORDER BOUNDARY-VALUE-PROBLEMS COMMUNICATIONS IN APPLIED NUMERICAL METHODS, 1986, 2 (06): : 593 - 602