Issue No.06 - November/December (1986 vol.3)
OSSI provides the interface missing between Modula-2 and system-dependent I/O operations. It can be ported between systems with minimal changes.
K. Hinrichs, G. Heiser, C. Muller, "A Portable Operating System Interface and Utility Library", IEEE Software, vol.3, no. 6, pp. 18-26, November/December 1986, doi:10.1109/MS.1986.229470