long review

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@@ -20,7 +20,7 @@ writing this paper was introducing state of the art research which later became
 the preferred way of dealing with side-effects in a pure language. The paper
 familiarized readers with the concepts while only requiring basic knowledge in
 functional programming.
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+ 
 \subsection{Impact}
 While Wadler had already published a lot about monads this turned out to be one
 of the most accessible and readable papers concerning the topic. A lot of the