_:n02cc46325c884b9483a505761025f6dfxb0
<http://schema.org/contactPoint>
_:n02cc46325c884b9483a505761025f6dfxb1
<https://31marta.ru/ulavlivanie-sernoj-kisloty-iz-othodjashhih-gazov-na-sernokislotnyh-zavodah-polshi-perevod-1955-god-v-kovalskij-i-s-serocinskij/>