Reviews Mastering Positional Sacrifices IM Merijn van Delft
English
https://en.chessbase.com/post/an-interview-with-merijn-van-delft
http://ontheroadtochessmaster.com/review-of-mastering-positional-sacrifices
German
https://de.chessbase.com/post/interview-mit-merijn-van-delft
Dutch
www.schaaksite.nl/2020/07/17/recensie-mastering-positional-sacrifices-door-merijn-van-delft
http://www.hansbohm.com/2013/wp-content/uploads/2020/08/rubriek-8-8.jpeg
https://www.maxeuwe.nl/images/Nieuwsbrief/Nieuwsbrief_98.pdf