Merkliste 
 1 Ergebnisse 
 
1

Methodological approaches to the development of criteria-ba..:

Orekhova Tatyana ; Neretina Tatiana ; Ustselemova Natalya..
https://www.shs-conferences.org/articles/shsconf/pdf/2021/09/shsconf_ec2020_01026.pdf.  , 2021