http://lib2.pushkinskijdom.ru:80/authors/%D1%8E-%D0%BC-%D1%87%D0%B8%D1%85%D0%B0%D0%BB%D0%BE%D0%B2%D0%B0-%D1%8E-%D0%BC-%D1%81%D0%B0%D0%BD%D0%BA%D1%82-%D0%BF%D0%B5%D1%82%D0%B5%D1%80%D0%B1%D1%83%D1%80%D0%B3Ю. М. Чихалова Ю. М. (Санкт-Петербург).