@misc{Kulowski_Andrzej_Impact, author={Kulowski, Andrzej}, howpublished={online}, publisher={Wydaw. Uczelniane Uniwersytetu Technologiczno-Przyrodniczego}, language={eng}, type={rozdział z książki}, title={Impact of caustics on acoustics of whispering grottoes in the Oliwa Park in Gdańsk}, keywords={blurred focus, caustic, chamber of whispers, historic interiors, room acoustics}, }