See the presentation of Dr. Yoko Yamazaki's lecture: "Sievers-Edgerton's law and Stang-Larsson's rule in the Baltic ē-preterite"
Dr. Yoko Yamazaki, Institut für Vergleichende Sprachwissenschaft, Universität Zürich, presents a paper in English about the interplay between the two language laws.
To the lecture - please click here: https://youtu.be/N9LX6qFib_A