RT Journal Article SR Electronic(1) A1 Van Hulle, IngeYR 2019 T1 Het stellig volkenrecht – 1910 JF Pro Memorie, VO 21 IS 2 SP 157 OP 159 DO https://doi.org/10.5117/PM2019.2.034.VANH PB Amsterdam University Press, SN 2667-1611, AB , UL https://www.aup-online.com/content/journals/10.5117/PM2019.2.034.VANH