"Whatever became of Kurt Schwitters' novel Franz Müllers Drahtfrühling (Franz Müller's Wire Spring), several chapters of which we composed together? Is it buried under the bomb ruins of his house on Waldhausenstrasse in Hannover? For hours, Schwitters and I [Hans Arp] sat together and spun dialogue, in rhapsody. He took these writings and channeled them into his novel.. .We sat together again, writing Franz Müllers Drahtfrühling:"
January 1, 1970
https://en.wikiquote.org/wiki/Kurt_Schwitters