We would like to inform you that PhD students of the Jagiellonian University have the opportunity to join the OK System program. A doctoral student who wants to purchase a pass is obliged to send to doktoranci@uj.edu.pl address from the mailbox in the domain uj.edu.pl information:
"I agree to provide OK System with information about my doctoral status" and to register on the website: https://pakietyoksystem.pl/doktoranciuj
You can purchase a companion's pass using the website: https://pakietyoksystem.pl/OT