AUTHOR=Hwu Jih Ru , Tsay Shwu-Chen TITLE=Editorial: In Memoriam of Professor Dr. Vojislav V. Mitić (1955–2021): A Distinguished Scholar With Unique Characters in the Fields of Brownian Motion, Fractal Analysis, and Ceramic Chemistry JOURNAL=Frontiers in Materials VOLUME=9 YEAR=2022 URL=https://www.frontiersin.org/journals/materials/articles/10.3389/fmats.2022.831895 DOI=10.3389/fmats.2022.831895 ISSN=2296-8016