IMA Journal of Mathematics Applied in Medicine and Biology (Oxford University Press) Vol. 1, No. 1, 1984–
Infinite Dimensional Analysis, Quantum Probability and Related Topics (World Scientific) Vol. 1, No. 1, 1998-
International Journal of Applied Mathematics and Computer Science (Gratis- ICM Wirtualne Biblioteka Nauki) Vol. 1, No. 1, 1920 – Vol. 166, No. 3, 2000
International Journal of Bifurcation and Chaos in Applied Sciences and Engineering (World Scientific) Vol. 1, No. 1, 1991 -
International Journal of Contemporary Mathematical Sciences (Gratis -Hikari LTD) Vol. 1, No. 1, 2006-
International Journal of Fuzzy Logic and Intelligent Systems (Gratis- Korean Science) Vol. 1, No. 1, 2001-
International Journal of Mathematical Combinatorics (Gratis- Chinese Academy of Science) Vol. 1, 2007-
International Journal of Mathematical Education in Science and Technology (Taylor & Francis Online) Vol. 1, No. 1, 1970-
International Journal of Mathematics and Mathematical Sciences (Hindawi Publishing Corporation) Vol. 1, 1978-
International Journal of Modern Physics A: Particles and Fields; Gravitation; Cosmology (World Scientific) Vol. 1, No. 1, 1986-
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Atomic, Molecular and Optical Physics (World Scientific) Vol. 1, No. 1, 1987–
International Journal of Modern Physics C: Computational Physics & Physical Computation (World Scientific) Vol. 1, No. 1, 1990–
International Journal of Nonlinear Analysis and Applications (Gratis Semnan University) Vol. 1, No. 1, 2010-
International Journal of Pure and Applied Mathematics (Academic Publications) Vol. 1, No. 1, 2002 -Vol. 118, No. 4, 2018
International Journal of Stochastic Analysis (Hindawi Publishing Corporation) Vol. 1, 1987 – Vol. 2018, 2018
International Journal of Theoretical and Mathematical Physics (Gratis- Scientific and Academic Publishing) Vol. 1, No. 1, 2011-
International Statistical Review / Revue Internationale de Statistique (J-Stor) Vol. 40, No. 1, 1972 – Vol. 85, No. 3, 2017
Izvestiya Rossiiskoi Akademii Nauk. Seriya Matematicheskaya (Gratis- Math-Net.Ru) Vol. 1, No. 1, 1967–