With complex structures, e.g., a chapter with subsections, selecting only the chapter is likely to select only the chapter's title, so probably you want to select the chapter and all its subsections.

The text structure is shown below.

Titel, Autor, Datum...
Erklärung von Nicola Gai am Prozess wegen der Verletzung des Chefs von Ansaldo Nucleare
Source, notes...