@article{ZNSL_2023_529_a0,
     author = {S. Nikolenko},
     title = {Preface},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5},
     year = {2023},
     volume = {529},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2023_529_a0/}
}