URL: www.kbuapa.khar ... http://www.kbuapa.kharkov.ua/e-book/title.html
URL: www.nbuv.gov.ua ... http://www.nbuv.gov.ua/e-journals/DeBu/index.html
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q96732649
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/eyx4jgggwbeivn6ptmqlmgxkm4
URL: www.kbuapa.khar ... http://www.kbuapa.kharkov.ua/e-book/title.html
URL: www.nbuv.gov.ua ... http://www.nbuv.gov.ua/e-journals/DeBu/index.html
Wikidata: www.wikidata.or ... http://www.wikidata.org/entity/Q96732649
FATCAT: fatcat.wiki/con ... https://fatcat.wiki/container/eyx4jgggwbeivn6ptmqlmgxkm4
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%221992-2337%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%221992-2337%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%221992-2337%22
CROSSREF: search.crossref ... https://search.crossref.org/?q=+1992-2337
