causes of uncertainty in a game: classification of games
Jörg Bewersdorff
Bewersdorff, Jörg: Luck, Logic and White Lies. The Mathematics of Games, AK Peters 2004, <a rel="nofollow" class="external text" href="http://www.galois-theorie.de/pdf/luck-logic-white-lies.pdf#page=11">preface including this graphics</a>. Translation of: Glück, Logik und Bluff, Wiesbaden 2012, S.VII (<a rel="nofollow" class="external text" href="https://link.springer.com/content/pdf/bfm%3A978-3-8348-2319-9%2F1#6">Springer Link</a>), see: <a class="external text" href="https://de.wikipedia.org/w/index.php?title=Datei:Ursachen_der_Ungewissheit.jpg">de:WP</a>, translated, converted to svg format