Treaties, States Parties and Commentaries
Treaties and Documents
Geneva Conventions of 1949 and Additional Protocols, and their Commentaries
Historical Treaties and Documents
The Laws of War on Land. Oxford, 9 September 1880.
Part II : Application of general principles #I. Hostilities #B. Rules of conduct with regard to things #(b) Sanitary material - Art. 37.
Art. 37. The neutrality of hospitals and ambulances ceases if they are guarded by a military force; this does not preclude the presence of police guard.