Markov and Lagrange spectra (survey of the literature)
Zapiski Nauchnykh Seminarov POMI, Studies in number theory. Part 4, Tome 67 (1977), pp. 5-38
A. V. Malyshev. Markov and Lagrange spectra (survey of the literature). Zapiski Nauchnykh Seminarov POMI, Studies in number theory. Part 4, Tome 67 (1977), pp. 5-38. http://geodesic.mathdoc.fr/item/ZNSL_1977_67_a0/
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     author = {A. V. Malyshev},
     title = {Markov and {Lagrange} spectra (survey of the literature)},
     journal = {Zapiski Nauchnykh Seminarov POMI},
     pages = {5--38},
     year = {1977},
     volume = {67},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZNSL_1977_67_a0/}
}
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Voir la notice du chapitre de livre provenant de la source Math-Net.Ru

A survey is given of investigations on the Markov problem of the arithmetic minima of indeterminate, binary, quadratic forms and on the Lagrange–Hurwitz problem of Diophantine approximations of irrational numbers by rational numbers.