| #261 | Communications in nonlinear science & numerical simulation. -- Amsterdam : Elsevier, 1996-. -- ISSN 1007-5704 print. -- ISSN 1878-7274 online |
| #262 | Communications In partial differential equations. -- New York : Dekker, 1976-. -- ISSN 0360-5302 print. -- ISSN 1532-4133 online |
| #263 | Communications in statistics, Theory and methods. -- New York : Dekker, 1976-. -- ISSN 0361-0926 print. -- ISSN 1532-415X online |
| #264 | Communications in statistics, Simulation and computation. -- New York : Dekker, 1976-. -- ISSN 0361-0918 print. -- ISSN 1532-4141 online |
| #265 | Communications in statistics, Stochastic models. -- New York : Dekker, 1985-2000. -- ISSN 0882-0287 |
| #266 | Communications on pure and applied mathematics. -- New York : Wiley, 1949-. -- ISSN 0010-3640 print. -- ISSN 1097-0312 online |
| #267 | Compel : the international journal for computation and mathematics in electrical and electronic engineering. -- Dun Laoghaire : Boole Press, 1982-. -- ISSN 0332-1649 |
| #268 | Complex analysis and operator theory. -- Berlin : Springer, 2007-. -- ISSN 1661-8254 print. -- ISSN 1661-8262 online |
| #269 | Compositio mathematica. -- Cambridge : London Mathematical Society, 1935-. -- ISSN 0010-437X print. -- ISSN 1570-5846 online |
| #270 | Comptes rendus, Mathematique. -- Paris : Elsevier, 2002-. -- ISSN 1631-073X print. -- ISSN 1778-3569 online |