@book {Arn,
     TITLE = {ARNOLD: Swimming against the tide},
    EDITOR = {Khesin, Boris A. and Tabachnikov, Serge L.},
 PUBLISHER = {Amer. Math. Soc., Providence, RI},
      YEAR = {2014},
     PAGES = {xvi+203},
       URL = {https://doi.org/10.1090/mbk/086},
}

@article {MR3766071,
    AUTHOR = {Fuchs, Dmitry and Kirillov, Alexandre and Morier-Genoud,
              Sophie and Ovsienko, Valentin},
     TITLE = {On tangent cones of {S}chubert varieties},
   JOURNAL = {Arnold Math.~J.},
  FJOURNAL = {Arnold Mathematical Journal},
    VOLUME = {3},
      YEAR = {2017},
    NUMBER = {4},
     PAGES = {451--482},
       URL = {https://doi.org/10.1007/s40598-017-0074-x},
    EPRINT = {1606.07846},
}

@incollection {Sos,
    AUTHOR = {Sossinsky, A.},
     TITLE = {In the other direction},
 BOOKTITLE = {Golden Years of {M}oscow Mathematics},
    SERIES = {Hist. Math.},
    VOLUME = {6},
     PAGES = {223--243},
 PUBLISHER = {Amer. Math. Soc., Providence, RI},
      YEAR = {1993},
}

@incollection {Tab,
    AUTHOR = {Sossinsky, Alexei and Tabachnikov, Sergei and Roger, Claude
              and Astashkevich, Alexander and Feigin, Boris and Schwarz,
              Albert},
     TITLE = {{P}ersonal notes},
 BOOKTITLE = {Differential Topology, Infinite-Dimensional {L}ie Algebras,
              and Applications},
    SERIES = {Amer. Math. Soc. Transl. Ser.~2},
    VOLUME = {194},
     PAGES = {301--313},
 PUBLISHER = {Amer. Math. Soc., Providence, RI},
      YEAR = {1999},
       URL = {https://doi.org/10.1090/trans2/194/15},
}
