Issue number

Deadline (deadline for submission)

Release date

№ 15

January 17, 2020

March 20, 2020

№ 16

March 6, 2020

May 8, 2020

№ 17

June 5, 2020

August 7, 2020

№ 18

July 31, 2020

October 2, 2020

№ 19

October 9, 2020

December 11, 2020

№ 20

December 4, 2020

February 5, 2021