@article {778,
	title = {Effect of host density upon the population growth of interacting two species of parasite. Experimental studies on synparasitism, 2nd report.},
	journal = {Oyo-Kontyu},
	volume = {9},
	year = {1953},
	pages = {102-107},
	author = {Utida, S.}
}
@article {779,
	title = {Population fluctuation in the system of interaction between a host and its two species of parasite. Experimental studies on synparasitism. 3rd report.},
	journal = {Oyo-Kontyu},
	volume = {11},
	year = {1955},
	pages = {43-48},
	author = {Utida, S.}
}
