 For instance (Baldrian-Hussein 2008:522) , "Since the volatile hun is fond of wandering and leaving the body during sleep, techniques were devised to restrain it, one of which entailed a method of staying constantly awake."
<coherence>  For instance (Baldrian-Hussein 2008:522) , "Since the volatile hun is fond of wandering and leaving the body during sleep, techniques were devised to restrain it, one of which entailed a method of staying constantly awake."
 For instance , "Since the volatile hun is fond of wandering and leaving the body during sleep, techniques were devised to restrain it, one of which entailed a method of staying constantly awake."