\part[\'Etude --- Domain-Specific Languages]{\'Etude\\[2ex]\smaller{}Domain-Specific Languages}%
\label{prt:dsl}
-\subfile{dsl/class_deep_embedding} % Deep embedding with class
-\subfile{dsl/first-class_datatypes} % First-class data types
+\subfile{dsl/class} % Deep embedding with class
+\subfile{dsl/first} % First-class data types
\part[Oratorio --- Task-Oriented Programming]{Oratorio\\[2ex]\smaller{}Task-Oriented Programming for the Internet of Things}%
\label{prt:top}