 His first publications came from Sauer's interests dealing with supersonic flow and precision problems of digital computations for numerical calculations of Eigenvalues.Soon after, Samelson's strong influence began on the development of Computer Science and Informatics as a new scientific discipline.With Friedrich L. Bauer, who also had Fritz Bopp as his Ph.D. advisor, he studied the structure of programming languages in order to develop efficient algorithms for their translation and implementation.