@article{SM_1999_190_10_a6,
     author = {O. Yu. Shvedov},
     title = {Complex {Maslov} germs in abstract spaces},
     journal = {Sbornik. Mathematics},
     pages = {1523--1557},
     publisher = {mathdoc},
     volume = {190},
     number = {10},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1999_190_10_a6/}
}