Wikipedia:Articles for deletion/Mathematics and mechanics of complex systems
This journal is listed in MathSciNet and in Zentralblatt MATH. As far as I know these are reliable third party sources for the mathematics field, and as far as I know both are selective. We've already had this discussion, perhaps two years ago, with WikiProject Mathematics editors, when some were adding Mathematics academic journals to Wikipedia. I think trivializing these databases requires sources to back up that they are trivial. WOS is not the only selective database. Also, we go by what  says more than stated opinions
— NONE, NONE
Stance: keep
Cited policy: WP:NJOURNALS (Wikipedia:Notability)