パウル・バドゥラ＝スコダ
Two Urtext editions were published in 1997: Paul Badura-Skoda (Henle) completes the Sonata in C major D. 279 with the Allegretto D. 346, and gives D. 277A in an appendix. The other publication of the same year is by Martino Tirimo (Wiener Urtext).