@misc{Wróbel_Walenty_(c._1475_–_1537)_Opusculum,
 author={Wróbel, Walenty (c. 1475 – 1537)},
 howpublished={online},
 publisher={Lother, Melchior (1470-1549)},
 language={lat},
 type={starodruk},
 title={Opusculum Quadragesimale / per Valentinum Posnanianum recollectum, omnibus, & potissimum in Vinea Dni laborantibus, perutile},
 keywords={kazania łacińskie 16w., kazania pokutne 16w., homilietyka 16w.},
}