Kirill Rivkin
I have been writing and publishing books and articles on Asian (Middle Eastern, Mongol, Caucasian and now Japanese) swords for the past 20 years.
These two are the most well known:
Study of the Eastern Sword: deals mostly with weapons of the Middle East and "Tatars"
Arms and Armor of Caucasus: obviously dedicated to Caucasus and its people
Free downloadable publications in English:
Japanese sword collector's guide
Japanese sword Newsletter 1st issue
Besides being a historian I am also a physicist, a military officer by training and since 2022 - a specialist on drone warfare and related applications.
Here I will place a few downloadable publications on the subject:
General review of UAV in Ukrainian war