Aerosol remote sensing over land: A comparison of satellite retrievals using different algorithms and instruments by Kokhanovsky, A, Breon, F, Cacciari, A, Carboni, E, Diner, D, Di Nicolantonio, W, Grainger, R, Grey, W, Hoeller, R, Lee, K, Li, Z, North, P, Sayer, A, Thomas, G, von Hoyningen-Huene, W