Documents associated with Olga Vasilievna Chelpanova

Letter, O. V. Chelpanova->A.P. Ershov, 27.02.1985
Telegram, A.P. Ershov->O. V. Chelpanova, 06.05.1985
about sending of the following lesson "Algorithmic language". /Handwritten text./
Telegram, A.P. Ershov->O. V. Chelpanova, 06.05.1985
Letter, O. V. Chelpanova->A.P. Ershov, 01.08.1985
Gratitude to A.Ershov for his fortitude in writing articles for the newspaper prior to his surgery
Letter, A.P. Ershov->O. V. Chelpanova, 15.08.1985
Letter, O. V. Chelpanova->A.P. Ershov, 30.10.1984

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