This topic reminded me of one old website. It was created more than two decades ago by a Russian guy (and oldschool voyeur) nicknamed Oceanologist who made a remarkable and impressive study on female urination and related topics (despite of several controversial and stereotyped statements). Some illustrative pictures are included. The content of this website has not been updated for a long time but its hosting is still maintained so it remains available (at least as of 2/3/2024). The website is entirely in Russian and does not have English translation but modern technologies allow to read it easily using website translation browser plugins.
The contents page of the main study:
https://fpfamily.narod.ru/Contents.htm
The homepage:
https://fpfamily.narod.ru/Index.html
And, yes, as many other people in this topic, I am interested in the subject document and would appreciate receiving a copy.
Thanks in advance.