Mirrors of Library
You can visit any of mirrors of page "http://www.moshkow.kulichki.com/TECHBOOKS/MODEM/Mirrors" :
http://lib.ru/TECHBOOKS/MODEM/Mirrors
http://www.kulichki.com/moshkow/TECHBOOKS/MODEM/Mirrors
http://moshkow.tomsk.ru/koi/TECHBOOKS/MODEM/Mirrors