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- [24] BAUNDEDNESS AND CONVERGENCE OF SOLUTIONS OF 2ND ORDER DIFFERENTIAL-EQUATIONS IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII MATEMATIKA, 1981, (07): : 54 - 61
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- [29] BLOCK HOPSCOTCH PROCEDURES FOR 2ND ORDER PARABOLIC DIFFERENTIAL-EQUATIONS JOURNAL OF THE INSTITUTE OF MATHEMATICS AND ITS APPLICATIONS, 1977, 19 (02): : 205 - 216