Here are links to get more information about the Lusitano Horse!
https://www.cavalo-lusitano.com/en/lusitano-horse
https://www.cavalo-lusitano.com/en/lusitano-horse/stud-book-rules
https://www.cavalo-lusitano.com/en/lusitano-horse/scientific-articles
And of course, here is the link to the public access studbook!
https://www.cavalo-lusitano.com/en/stud-book/public-access-to-the-stud-book