@article{ZNSL_2023_530_a0,
     author = {S. Nikolenko},
     title = {Preface},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5},
     publisher = {mathdoc},
     volume = {530},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_2023_530_a0/}
}