It is recommended to book the hotel at the Symposium venue (Management Training Center). Just to ask us to book the room (single, double or apartments) via e-mail isbb2016@yandex.ru. The cost of rooms varies from 3000 to 6000 Rubles (45–90 Euro) www.congresscomplex.ru/hotel/  
Another choice of accommodation is the hotel «Natali» situated in Pushkin downtown, 15 minutes by walking from the Symposium venue. The cost of rooms varies from 3500 to 8500 Rubles (50–100 Euro). Contact us first if you would like to book a room at this hotel. See details: http://www.hotelnatali.ru/index.php/en.html  
Other hotels: http://www.booking.com/city/ru/pushkin.en-gb.html