Histoire d'une forteresse : Landrecies
https://books.google.be/books?id=Uj9NAQAAMAAJ&pg=PA44&dq=remparts+de+landrecies&hl=fr&sa=X&ved=0ahUKEwiZtYOm5OjoAhVJ_aQKHUbrBWsQ6AEIKDAA#v=onepage&q&f=false