The following hotels are located close to the conference site and offer a reasonable trade-off between price and quality:
Hotel Ibis Warsaw Reduta
The organisers have reserved certain pool of rooms in that hotel for the participants of DLT 2019. To make use of that special offer, you should refer to the keyphrase
Kampus Ochota konferencja naukowa DLT 2019
when asking for a reservation at Anna Dobrzyńska Ibis (H7125@ACCOR.COM).
Radisson Blu Sobieski Hotel
This hotel is located closer to the city center. Unfortunately, we cannot offer any special offer for that hotel.
Hotel Campanile Warszawa
Located very close to Radisson Blu Sobieski, lies already in downtown of Warsaw.