Gesammelte Denkschriften […] über die deutschen Posten Langfang [廊房] Yangtsun [楊村] Tangku [塘沽], Shanhaikwan [山海關] (Tientsin: Verlag der Brigade-Zeitung, 1906)
- Digitized: Internet Archive (digitizing sponsor: Google; book contributor: Stanford University Library)
- No copy listed in Wiener China-Bibliographie