@article {3103,
	title = {The fungal association in a colony of Gastrodia sesamoides R. Br.},
	journal = {Trans. Roy. Soc. New Zealand},
	volume = {2},
	year = {1964},
	month = {1964///},
	pages = {237 - 246},
	author = {Campbell, E. O.}
}
@article {3104,
	title = {The mycorrhiza of Gastrodia cunninghamii Hook. f.},
	journal = {Trans. Roy. Soc. New Zealand, Botany},
	volume = {1},
	year = {1962},
	month = {1962///},
	pages = {289 - 296},
	author = {Campbell, E. O.}
}
@article {3060,
	title = {The morphology of the fungal associations of three species of Corallorhiza in Michigan},
	journal = {Michigan Bot.},
	volume = {9},
	year = {1970},
	month = {1970///},
	pages = {108 - 113},
	author = {Campbell, E. O.}
}
@article {3026,
	title = {Gastrodia minor Petrie, an epiparasite of Manuka},
	journal = {Trans. Roy. Soc. New Zealand},
	volume = {2},
	year = {1963},
	month = {1963///},
	pages = {73 - 81},
	author = {Campbell, E. O.}
}
@article {2998,
	title = {An investigation of Thismia rodwayi F. Muell. and its associated fungus},
	journal = {Trans. Roy. Soc. New Zealand},
	volume = {3},
	year = {1968},
	month = {1968///},
	pages = {209 - 219},
	author = {Campbell, E. O.}
}
@article {2922,
	title = {Notes on the fungal association of two Monotropa species in Michigan},
	journal = {Michigan Bot.},
	volume = {10},
	year = {1971},
	month = {1971///},
	pages = {63 - 67},
	author = {Campbell, E. O.}
}
