@article{Xu2015, author = "Li Xu and Feng Zhang and Kun Zhang and Erkang Wang and Jin Wang", title = "{The potential landscapes for the predation, competition and mutualism models.}", year = "2015", month = "12", url = "https://plos.figshare.com/articles/figure/_The_potential_landscapes_for_the_predation_competition_and_mutualism_models_/918843", doi = "10.1371/journal.pone.0086746.g002" }