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Марина Владимировна Буслаева, Marina Vladimirovna Buslaeva, Владимир Савельевич Буслаев, Vladimir Savel'evich Buslaev. "Сингулярности функции Грина нестационарного уравнения Шрeдингера." Функциональный анализ и его приложения 32.2 (1998) 80-83