1. научная статья

    https://coar-rt.empedokl.es/c_2df8fbb1

    A research article is a primary source, that is, it reports the methods and results of an original study performed by the authors. (adapted from http://apus.libanswers.com/faq/2324)

  2. неподвижное изображение

    https://coar-rt.empedokl.es/c_ecc8

    A recorded static visual representation. This class of image includes diagrams, drawings, graphs, graphic designs, plans, photographs and prints. [Source: Adapted from http://purl.org/spar/fabio/StillImage]

  3. нотная запись

    https://coar-rt.empedokl.es/c_18cw

    Symbols used to write music, as in a music score, and to express mathematical concepts. [Source: Adapted from https://products.abc-clio.com/ODLIS/odlis_n.aspx]