Algebraic reduction of Feynman diagrams to scalar integrals: A {it Mathematica} implementation of LERG-I A Mathematica implementation of the program LERG-I is presented that performs the reduction of tensor integrals, encountered in one-loop Feynman diagram calculations, to scalar integrals. The program was originally coded in REDUCE and in that incarnation was applied to a number of problems of physical interest. (Source: http://cpc.cs.qub.ac.uk/summaries/)