# F. W. Otto Lehmann
**Wikidata**: [Q117585268](https://www.wikidata.org/wiki/Q117585268)  
**Source**: https://4ort.xyz/entity/f-w-otto-lehmann


## References

1. Catalog of the German National Library
2. [Source](http://cbsopac.rz.uni-frankfurt.de/DB=2.1/PPNSET?PPN=117888699)