On Hankel determinants of functions given by their expansions in $P$-fractions von Buslaev, V. I., Буслаев, В. И., Буслаев, В. И.

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On a criterion of rationality for a series in orthogonal polynomials von Buslaev, V. I., Буслаев, В. И., Буслаев, В. И.

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