He took the name Radek from a favourite character, Andrzej Radek, in Syzyfowe prace ('The Labors of Sisyphus', 1897) by Stefan Żeromski.
Ia mengambil nama Radek dari karakter favorit, Andrzej Radek, di Syzyfowe prace ('The Labor of Sisyphus', 1897) karya Stefan Żeromski.