EPSILON

P. A. Ershov, Novosibirsk, 1967

A macro language with high level features: strings, lists, etc. It was used to implement ALGOL 68 on the M-220 computer.

"Application of the Machine-Oriented Language Epsilon to Software Development", I. V. Pottosin et al, in Machine Oriented Higher Level Languages : Proceedings of the IFIP Working Conference on Machine Oriented Higher Level Languages, W. van der Poel, North-Holland, 1974, pp.417-434.