SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/039996301
SUDOC: www.sudoc.fr/03 ... http://www.sudoc.fr/039996301
Google: www.google.com/ ... https://www.google.com/search?q=ISSN+%220894-9077%22
Bing: www.bing.com/se ... https://www.bing.com/search?q=ISSN+%220894-9077%22
Yahoo: search.yahoo.co ... https://search.yahoo.com/search?p=ISSN%20%220894-9077%22
Koninklijke Bibliotheek: opc4.kb.nl/DB=1 ... http://opc4.kb.nl/DB=1/LNG=EN/CMD?ACT=SRCHA&IKT=8&TRM=0894-9077
CROSSREF: search.crossref ... https://search.crossref.org/?q=+0894-9077