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SIGMA, Symmetry Integrability Geom. Methods Appl.
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]. National Academy of Sciences of Ukraine - NAS Ukraine (Natsional'na Akademiya Nauk Ukrayiny - NAN Ukrayiny), Institute of Mathematics (Instytut Matematyky), Kiev. English. [1 vol. a year (updated continuously)]
Journal, ISSN 1815-0659/e
http://www.emis.de/journals/SIGMA/
http://www.imath.kiev.ua/~sigma/
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