1
2
Published: 1983
Superior document: Acta Universitatis Ouluensis : A, Scientiae rerum naturalium 144
3
Published: 1978
Superior document: Acta Universitatis Ouluensis : A, Scientiae rerum naturalium 73
4
Published: 1975
Superior document: Acta Universitatis Ouluensis : A, Scientiae rerum naturalium 35
5
Published: 1983
Superior document: Acta Universitatis Ouluensis : A, Scientiae rerum naturalium 149