context: Robert von Zimmermann or Robert Zimmermann (November 2, 1824, Prague – September 1, 1898, Prague) was a Czech-born Austrian philosopher.
source: Zimmermann had been a student of Bolzano's.
reference_original: ज़िमर्मन बोलजानो के छात्र रहे थे।
reference_flipped: ज़िमर्मन बोलजानो की छात्रा रही थी।