@article {697,
	title = {Antti Pekkarinen 1941-2016. },
	journal = {Luonnon Tutkija},
	volume = {120},
	year = {2016},
	pages = {24-26.},
	author = {Ter{\"a}s, I. and Koponen, S. and Mannerkoski, I.}
}
