00554nam a2200169Ia 4500 CTU_48027 210402s9999 xx 000 0 und d 515.243 M125 NGUYỄN VĂN MẬU Lý thuyết chuỗi và phương trình vi phân NGUYỄN VĂN MẬU, Nguyễn Thanh Thủy, Đặng Huy Ruận Hà Nội ĐHQG 2001 differential equations,series Trung tâm Học liệu Trường Đại học Cần Thơ