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THREE POSITIVE PERIODIC SOLUTIONS OF NONLINEAR DIFFERENTIAL EQUATIONS WITH PERIODIC COEFFICIENTS
LIU, YUJI, GE, WEIGUO, GUI, ZHANJIVolume:
3
Language:
english
Journal:
Analysis and Applications
DOI:
10.1142/S0219530505000546
Date:
April, 2005
File:
PDF, 187 KB
english, 2005