^e.g. see http://www.furtwangler.net/inmemoriam/data/conce_en.htm#a1923 where a performance of Straesser's 4th symphony opus 46 is mentioned - a PDF on the site refers to it as symphony 4 while the site itself refers to it just as symphony opus 46. Symphony 6 opus 50 was in another Furtwängler concert according to the same site in 1927, October 13.
^according to e.g. mentions in issues of the Neue Zeitschrift für Musik from 1933. Also see Albrecht's book, above
^he is mentioned a few times in this connection in 1910s music magazine concert reviews, e.g. in The Musical Times
^This premiere is noted specifically in Panzner's German Wikipedia article.
^In G major, Op. 34 - see IMSLP. This work, along with Henri Marteau's clarinet quintet, is announced for release on the Sterling Records CD label in July 2013.
^"BBC Proms Archive". Retrieved October 16, 2011. Riemann 1922 mentions the violin concerto in its Straesser worklist.
RISM has incipits and other information for Straesser's 2nd and 4th symphonies and one choral work (but gives opus 44 for symphony 4 while other sources give opus 46. Clearly the same work, however- symphony in G minor, unpublished)