# Monophthongization of diphthongs in Proto-Slavic
**Wikidata**: [Q4301877](https://www.wikidata.org/wiki/Q4301877)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Monophthongization_of_diphthongs_in_Proto-Slavic)  
**Source**: https://4ort.xyz/entity/monophthongization-of-diphthongs-in-proto-slavic