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Literature Cited
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Additional information
L'vov State University. Translated from Teoreticheskaya i Matematicheskaya Fizika, Vol. 85, No. 1, pp. 25–31, October, 1990.
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Kopets, A.S. Quasiregular solutions for systems of hypoelliptic differential equations. Theor Math Phys 85, 1028–1032 (1990). https://doi.org/10.1007/BF01017243
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DOI: https://doi.org/10.1007/BF01017243