TY - RPRT TI - The Euler characteristic as a basis for teaching topology concepts to crystallographers AU - Naskręcki, Bartosz AU - Jaskolski, Mariusz AU - Dauter, Zbigniew PY - 2022 DO - 10.1107/s160057672101205x UR - https://www.osti.gov/biblio/2470008 ID - 2470008 ER -