N2 - Professor Aleksander Opilski has passed away on 20 April 2012. Aleksander Opilski was born on 31 August 1931 in Zagórze in the then Śląskie Voivodship. He underwent his 1st level studies in the years 1950–1953 at the Faculty of Mathematics, Physics and Chemistry of the Jagiellonian University in Krakow. His 2nd level academic education was completed at the Adam Mickiewicz University in Poznań from which he graduated in 1958 as a Master of Science in Physics. L1 - http://journals.pan.pl/Content/101613/PDF/17_paper.pdf L2 - http://journals.pan.pl/Content/101613 PY - 2012 IS - No 3 EP - 402 DO - 10.2478/v10168-012-0049-9 A1 - Pustelny, Tadeusz PB - Polish Academy of Sciences, Institute of Fundamental Technological Research, Committee on Acoustics VL - vol. 37 DA - 2012 T1 - In Memoriam. Professor Aleksander Opilski SP - 399 UR - http://journals.pan.pl/dlibra/publication/edition/101613 T2 - Archives of Acoustics