Accessible also on Sciendo (De Gruyter) platform:
https://content.sciendo.com/view/journals/ers/ers-overview.xml and in print.
Contact
Publisher
John Paul II University in Biała Podlaska
Sidorska 95/97 21-500 Biała Podlaska, Poland
Email:
m.mikolajczuk@akademiabialska.pl
e–mail:
ers@akademiabialska.pl