Open Access (OA) is free of charge, common access to up to date knowlegde.
Its goal is to popularise scientific publications to make them accessible for use by scientists, students, entrepreneurs and the whole society. In practice, Open Access is carried out in the Green Model (publishing in open repositories), or the Gold Model (publishing in open or hybrid journals, which usually means covering the editorial cost by the author or his/her institution).

Within the limits of country-level consortial licences of the ICM Virtual Library of Science Open Access publishing programs have been launched in cooperation with several publishing companies. Each of them offers a limited pool of free of charge articles for all participating institutions. IPC PAS employees can participate in five of them to publish free of charge: Elsevier, Springer, ACS, IoP and RSC.

Terms of Open Access publishing
in particular publishing companies:

Open Access resources:

A picture of a shelf with old books and flasks with chemical substances.