| #11 | Abhandlungen der Sächsischen Akademie der Wissenschaften zu Leipzig, Mathematisch-Naturwissenschaftliche Klasse. -- Berlin : Akademie Verlag, 1944-. -- ISSN 0365-6470 |
| #12 | Abstract and applied analysis. -- Tampa : Mancorp, 1996-. -- ISSN 1085-3375 print. -- ISSN 1687-0409 online |
| #13 | Abstracts of papers presented to the American Mathematical Society. -- Providence : American Mathematical Society, 1980-. -- ISSN 0192-5857 |
| #14 | ACM transactions on computational logic. -- New York : Association for Computationg Machinery, 2000-. -- ISSN 1529-3785 print. -- ISSN 1557-945X online |
| #15 | ACM transactions on mathematical software. -- New York : Association for Computing Machinery, 1975-. -- ISSN 0098-3500 print. -- ISSN 1557-7295 online |
| #16 | ACM transactions on modeling and computer simulation. -- New York : The Association, 1991-. -- ISSN 1049-3301 print. -- ISSN 1558-1195 online |
| #17 | Acta Academiae Aboensis., Ser. B, Mathematica et physica. -- Aabo : Aabo Akademi, 1922-. -- ISSN 0001-5105 |
| #18 | Acta applicandae mathematicae : an international survey journal on applying mathematics and mathematical applications. -- Dordrecht : Reidel, 1983-. -- ISSN 0167-8019 print. -- ISSN 1572-9036 online |
| #19 | Acta Arithmetica. -- Warszawa : Instytut Matematyczny PAN, 1935-. -- ISSN 0065-1036 print. -- ISSN 1730-6264 online |
| #20 | Acta Facultatis rerum naturalium Universitatis Comenianae, Mathematica. -- Bratislava : Slovenské pedagogické nakladatelstvo, 1956-1979. -- ISSN 0373-8183 |