Geodesic
On the Schur--Cohn problem
Matematičeskie zametki, Tome 18 (1975) no. 1, pp. 27-30

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A`new criterion (in terms of determinant inequalities) is obtained for all the roots of a real polynomial to lie inside the unit circle, i.e., a criterion of stability of periodic motions. In contrast to the Schur-Cohn criterion, the number of determinants used by us is by four times smaller. 
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     author = {G. F. Korsakov},
     title = {On the {Schur--Cohn} problem},
     journal = {Matemati\v{c}eskie zametki},
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     publisher = {mathdoc},
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     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1975_18_1_a3/}
}
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G. F. Korsakov. On the Schur--Cohn problem. Matematičeskie zametki, Tome 18 (1975) no. 1, pp. 27-30. http://geodesic.mathdoc.fr/item/MZM_1975_18_1_a3/