"Hayato Shimura,Mayuko Nakamaru","Large group size promotes the evolution of cooperation in the mutual-aid game",,"Journal of theoretical biology",,"Vol. 451",,"pp. 46-56",2018,Aug.
"Mayuko Nakamaru,Hayato Shimura,Yoko Kitakaji,Susumu Ohnuma","The effect of sanctions on the evolution of cooperation in linear division of labor",,"Journal of theoretical biology",,"Vol. 437",,"pp. 79-91",2018,Jan.