Date of birth	1943
Other Forms of Name	Hejkkinen, Jouko (1943-) Хейккинен, Йоуко (1943-)
Identifiers	0000000484503907 (isni) http://urn.fi/URN:NBN:fi:au:finaf:000086591 (finaf)
Sources	Kemin Jokke (1995)