His influences included student Robert Bunsen and Gustav von Hüfner in Leipzig and Carl Ludwig at the University of Heidelberg . As a student , his influences included Robert Bunsen and Gustav von Hüfner at Leipzig , and Carl Ludwig at the University of Heidelberg .
Pengaruh beliau termasuk pelajar Robert Bunsen dan Gustav von Hfner di Leipzig dan Carl Ludwig di Universiti Heidelberg. Sebagai seorang pelajar, pengaruh beliau termasuk Robert Bunsen dan Gustav von Hfner di Leipzig, dan Carl Ludwig di Universiti Heidelberg.