His letter of recommendation was signed by eighteen notable academicians, including Ion Nistor, Alexandru Lapedatu, Dimitrie Pompeiu, Gheorghe Spacu, Emil Racoviţă, Iorgu Iordan, Constantin Ion Parhon, Nicolae Bănescu, Constantin Rădulescu-Motru, Ştefan Ciobanu, Radu R. Rosetti, and Silviu Dragomir.
Ion Television | Ion Iliescu | Ion | Ion Creangă | Ion Birch | Lithium-ion battery | Ion Voicu | Ion Nunweiller | Ion (mythology) | Ion Antonescu | ION Television | Ion Panţuru | Ion Mihalache | Ion Idriess | Ion exchange | Ion Baciu | Voltage-gated ion channel | Saturn Ion | Relativistic Heavy Ion Collider | lithium-ion battery | Ion Vincze | Ion Tower | Ion Storm | Ion Sancho (politician) | Ion Sancho | Ion (play) | Ion Perdicaris | Ion Păscăluţă | Ion N. Petrovici | Ion Nistor |