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- [13] GEOMETRY OF DIFFERENTIAL EQUATION Y'''=F(X,Y,Y' + G(X,Y,Y')Y'' + H(X,Y,Y')Y'' TO 2ND ATTI DELLA ACCADEMIA NAZIONALE DEI LINCEI RENDICONTI-CLASSE DI SCIENZE FISICHE-MATEMATICHE & NATURALI, 1970, 48 (01): : 50 - &
- [16] DIOPHANTINE EQUATION Y(Y+1)(Y+2)(Y+3) = 3X(X+1)(X+2)(X+3) JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES, 1975, 10 (MAY): : 232 - 240
- [18] 121 PERIODICITY OF DISTANCE OF ZEROS OF INTEGRALS IN DIFFERENTIAL EQUATION Y'' =Q(T)Y TENSOR, 1972, 26 : 121 - 128
- [19] EQUATION 4XN+2Y'' + Y2N+1 = 0 NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1975, 22 (01): : A133 - A133