Authors: Lawrimore, JH Halpert, MS Bell, GD Menne, MJ Lyon, B Schnell, RC Gleason, KL Easterling, DR Thiaw, W Wright, WJ Heim, RR Robinson, DA Alexander, L

Citation: Jh. Lawrimore et al., Climate assessment for 2000, B AM METEOR, 82(6), 2001, pp. S1-S55

Authors: Heim, RR

Citation: Rr. Heim, Drought indices - A review, ROUTLEDGE H, 2000, pp. 159-167