@article{ZHANG Yi-Fang_50, author = {[ZHANG Yi-Fang]}, title = {New Differential Test for A Series of Positive Terms and Its Completeness and Nonstandard Analysis}, publisher = {Journal of Jishou University(Natural Sciences Edition)}, year = {2007}, journal = {Journal of Jishou University(Natural Sciences Edition)}, volume = {28}, number = {5}, eid = {50}, pages = {50-51}, keywords = {
positive terms;rest;differential;nonstandard analysis
}, url = https://zkxb.jsu.edu.cn/EN/abstract/article_878.shtml }