Vigne, L.; Martin, E.B. 1987. Clamp-down on rhino horn trade in North Yemen. Species 9: 21-23, fig. 1.
Martin, C.P.; Vigne, L.; Martin, E.B. 1987. Conservation crisis – the rhinoceros in India. Oryx 21 (4): 212-218, figs. 1-2, tables 1-2.
Martin, C.P.; Martin, E.B. 1987. Combatting the illegal trade in rhinoceros products. Oryx 21 (3): 143-148, figs. 1-2, table 1.
Vigne, L.; Martin, E.B. 1987. The North Yemen government and the rhino horn trade. Swara 10 (4): 25-28, figs. 1-4.
Vigne, L.; Martin, E.B. 1987. Recent developments in the rhino horn trade. Traffic Bulletin 9 (2/3): 49-53, figs. 1-2, table 1.
Martin, E.B. 1987. Clamp-down on rhino-horn trade in North Yemen. Newsletter of the SSC 9: 21-23, fig. 1.
Vigne, L.; Martin, E.B. 1987. North Yemen takes fresh steps to crack-down on rhino horn trade. Quagga 18: 7-9, figs. 1-4, table 1.
Vigne, L.; Martin, E.B. 1986. International trade in rhino products. WWF Yearbook 1985-1986: 46-48, fig. 1.
Martin, E.B. 1985. Religion, royalty and rhino conservation in Nepal. Oryx 19 (1): 11-16, figs. 1-4.
Martin, E.B. 1985. Rhinos and daggers: a major conservation problem. Oryx 19 (4): 198-201, figs. 1-4.






