@article{IM2_2023_87_3_a7,
     author = {N. A. Tyurin},
     title = {Special {Bohr--Sommerfeld} geometry: variations},
     journal = {Izvestiya. Mathematics },
     pages = {595--615},
     publisher = {mathdoc},
     volume = {87},
     number = {3},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2023_87_3_a7/}
}