Amsterdam Density Functional
Amsterdam Density Functional (ADF) is a program for first-principles electronic structure calculations using density functional theory (DFT). ADF was first developed in the early seventies by the group of E. J. Baerends from the Vrije Universiteit Amsterdam, and by the group of T. Ziegler from the University of Calgary.
Source: Wikipedia — Amsterdam Density Functional (CC BY-SA 4.0)