Dear Collaborators, 
Starting with the 1st of September 2021 the fee for publishing in our journal is 70 USD/60 EURO.
The Ph.D. students will have a discount of 50%, the fee for them being 35 USD/30 Euro.
The details regarding the payment will be sent when the article is accepted for publishing. 
All the articles submitted by the 1st of September 2021 shall be published in the order of the issues with the current fee of 50 USD/42 Euro.
We appreciate your contribution to the quality of the work that we publish.