context: Historians have found no letters written by him to colleagues while under Wundt's supervision.
source: However, it is said that while Witmer was Wundt's assistant, they had several disagreements.
reference_original: Entretanto, foi dito que enquanto Witmer foi o assistente de Wundt, eles tiveram vários discordâncias.
reference_flipped: Entretanto, foi dito que enquanto Witmer foi a assistente de Wundt, eles tiveram vários discordâncias.