TY  - GEN
DA  - 1920-04-12
PY  - 1920-04-12
TI  - Albert Einstein an Vaihinger, 12.4.1920, Ts.-Durchschlag, Regest in: https://einsteinpapers.press.princeton.edu/vol9-doc/685
UR  - https://nbn-resolving.org/urn:nbn:de:hbz:468-edhv2025-001384-6
Y2  - 2026-01-16T05:19:04
ER  -