The following instruction has been prepared by Witold Kieraś, Karol Saputa, Łukasz Kobyliński, and Ryszard Tuora. It has been translated to English by Natalia Zawadzka-Paluektau. The instruction is available under the following licence: BY-SA.
Section “Corpus Query Language” derives from “Polish National Corpus: A Quick Start Guide” (available under Creative Commons BY-SA licence). The latter document was first created by Adam Przepiórkowski, and updated by Jakub Wilk and Aleksander Buczyński.