Tendencje rozwojowe tenisa ziemnego

von Unierzyski, Piotr (Autor) ...
Erschienen in Tendencje rozwoju sportu, Posen: Akademia Wychowania Fizycznego im. Eugeniusza Piaseckiego w Poznaniu (Verlag), 1993, S. 147-162, Lit.

Successo ed insuccesso nella carriera dei giovani tennisti

von Unierzyski, Piotr (Autor), ... Madella, Alberto (Autor)
Erschienen in Scuola dello Sport, 23 (2002), 60-61, S. 69-74, Lit.

Relation between general and specific fitness with sport level of wheelchair tennis players : pilot study

von Szańca, Marta (Autor), ... Unierzyski, Piotr (Autor)
Erschienen in Current trends in performance analysis : World Congress of Performance Analysis of Sport VIII ; selected proceedings ; Otto-von-Guericke-Universität Magdeburg, Department of Sports Science, Deutschland, 03rd - 06th September 2008, Aachen: Shaker-Verlag (Verlag), 2009, S. 319-326, Lit.