Marshall, BarryJ; Warren, J.Robin (June 1984). "Unidentified curved bacilli in the stomach of patients with gastritis and peptic ulceration". The Lancet. 323 (8390): 1311–1315. doi:10.1016/S0140-6736(84)91816-6. PMID6145023. S2CID10066001.
Fischer, Stanley; Easterly, William (1990). "The economics of the government budget constraint". The World Bank Research Observer. 5 (2): 127–142. CiteSeerX10.1.1.1009.4220. doi:10.1093/wbro/5.2.127.
Marshall, BarryJ; Warren, J.Robin (June 1984). "Unidentified curved bacilli in the stomach of patients with gastritis and peptic ulceration". The Lancet. 323 (8390): 1311–1315. doi:10.1016/S0140-6736(84)91816-6. PMID6145023. S2CID10066001.
Fischer, Stanley; Easterly, William (1990). "The economics of the government budget constraint". The World Bank Research Observer. 5 (2): 127–142. CiteSeerX10.1.1.1009.4220. doi:10.1093/wbro/5.2.127.
Marshall, BarryJ; Warren, J.Robin (June 1984). "Unidentified curved bacilli in the stomach of patients with gastritis and peptic ulceration". The Lancet. 323 (8390): 1311–1315. doi:10.1016/S0140-6736(84)91816-6. PMID6145023. S2CID10066001.