Spectral properties of the monodromy matrix for Harper equation
Journées équations aux dérivées partielles (1996), article no. 4, 11 p. 
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     author = {Buslaev, Vladimir and Fedotov, Alexander},
     title = {Spectral properties of the monodromy matrix for {Harper} equation},
     journal = {Journ\'ees \'equations aux d\'eriv\'ees partielles},
     eid = {4},
     pages = {1--11},
     publisher = {Ecole polytechnique},
     year = {1996},
     mrnumber = {98m:81032},
     zbl = {0874.39006},
     language = {en},
     url = {http://archive.numdam.org/item/JEDP_1996____A4_0/}
}
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Buslaev, Vladimir; Fedotov, Alexander. Spectral properties of the monodromy matrix for Harper equation. Journées équations aux dérivées partielles (1996), article  no. 4, 11 p. http://archive.numdam.org/item/JEDP_1996____A4_0/

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