TY -的盟Došly Ondřej PY - 2004 DA - 1900/01/01 TI -辛差分系统:振动理论和双曲Prufer转换SP - 370453六世- 2004 AB - SN - 1085 - 3375 UR - https://doi.org/10.1155/S108533750430607X - 10.1155 / S108533750430607X JF -抽象和应用分析PB - Hindawi出版公司KW - ER