Annales Academiae Scientiarum Fennicae. Mathematica. Mathematica - Helsinki: Suomalainen Tiedeakatemia, 1996-. - v. ; 25 cm. - Two no. a year - Vol. 21, fasc. 1- In English. ISSN: 1239-629X CODEN: AASMFV LCCN: sn 98047202 Subjects--Topical Terms: Mathematics--Periodicals.