Fifty years of biological conservation. (February 2019) - Pakeman, Robin J.; Bates, Amanda; Corlett, Richard T.; Cumming, Graeme S.; Johns, David; Koh, Lian Pin; Loyola, Rafael; Maas, Bea; Pejchar, Liba; Primack, Richard B.; Regan, Tracey J.; Roth, Robin; et al.