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Original Russian Text © A.I. Mikheeva, R.Z. Dautov, 2008, published in Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2008, No. 2, pp. 41–47.
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Mikheeva, A.I., Dautov, R.Z. Accuracy of the penalty method for parabolic variational inequalities with an obstacle inside the domain. Russ Math. 52, 39–45 (2008). https://doi.org/10.3103/S1066369X08020060
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DOI: https://doi.org/10.3103/S1066369X08020060