@misc{Helenowska-Peschke_Maria_Descriptive,
 author={Helenowska-Peschke, Maria and Wancław, Anna},
 copyright={Gdańsk University of Technology Library},
 howpublished={online},
 publisher={published by the author},
 language={pol},
 type={multimedia document},
 title={Descriptive geometry in examples},
 keywords={horizontal projection, shadow construction, descriptive geometry, perspective, monge projection, axonometric projection},
}