@Article{AAM-35-i,
author = {Guo , Boling},
title = {Preface},
journal = {Annals of Applied Mathematics},
year = {2020},
volume = {35},
number = {3},
pages = {i--ii},
abstract = {},
issn = {},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/aam/18080.html}
}