Geodesic
Nikolai Nikolaevich Konstantinov passed away
Matematičeskoe obrazovanie, no. 3 (2021) 
Nikolai Nikolaevich Konstantinov passed away. Matematičeskoe obrazovanie, no. 3 (2021). http://geodesic.mathdoc.fr/item/MO_2021_3_a0/
@misc{MO_2021_3_a0,
     title = {Nikolai {Nikolaevich} {Konstantinov} passed away},
     journal = {Matemati\v{c}eskoe obrazovanie},
     pages = {2},
     year = {2021},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MO_2021_3_a0/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Nikolai Nikolayevich Konstantinov (born January 2, 1932), a permanent member of the editorial board of our journal, died on July 3 of this year after a serious long illness.