@article {Triantaphyllou,
	title = {Efficient preservation of Root-knot and cyst nematodes in liquid nitrogen},
	journal = {Journal of Nematology},
	volume = {21},
	number = {3},
	year = {1989},
	pages = {423{\textendash}426},
	author = {Triantaphyllou, A. C. and McCabe, E.}
}
