@article{TIMM_2024_30_1_a0, author = {B. I. Anan'ev}, title = {On some complements to {Liu's} theory}, journal = {Trudy Instituta matematiki i mehaniki}, pages = {5--20}, year = {2024}, volume = {30}, number = {1}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TIMM_2024_30_1_a0/} }