中国科学院数学与系统科学研究院期刊网
批发定价模型下,滞后发行电子书是否更有优势
张林兰,魏永长
Whether a Publisher Publishes an E-Book Lagging Behind Its Print Version is Better Under Wholesale Pricing Model
ZHANG Linlan, WEI Yongchang
系统科学与数学 . 2019, (11): 1855 -1869 .  DOI: 10.12341/jssms13748