History of the Kohlrausch (stretched exponential) function: Focus on   uncited pioneering work in luminescence
  The first use of the stretched exponential function to describe the time evolution of a non-equilibrium quantity is usually credited to Rudolph Kohlrausch (1809-1858), who in 1854 applied it to the discharge of a capacitor. Attention is drawn to a set of pioneering works on the Kohlrausch function, one of which published 101 years ago, and that are not mentioned by Cardona, Chamberlin, and Marx in Ann. Phys. (Leipzig) 16, 842 (2007). 
M. Berberan-Santos, E. N. Bodunov, and B. Valeur