https://iwd.1917.su/ https://iwd.1917.su/people/kollontai/ https://iwd.1917.su/people/kollontai/mezhdunarodnyj_den_rabotnic/ https://iwd.1917.su/books/lubimova_st_50letie_mjd_1960_compressed.pdf https://iwd.1917.su/notes/1913_pravda_41-44_v_kalashnikovskoj_birzhe/ https://iwd.1917.su/books/kollontai_am_mjd_1920_compressed.pdf