CristPrachRud Cristannus de Prachaticz, Rudimenta, e cod. UK IV G 2 fol. 1r–14v. ante 1439 rudimenta artis compot-e...curavi conscribere CristPrachAlg f.37r (sim. CristPrachRud f.2r, ubi: artis conpot-e cum gl.: id est artis arismetrice)