Sergey Rybin Alfred Strohmeier Eugene Zueff ASIS for GNAT: Goals, Problems and Implementation Strategy. 139-151 1995 conf/adaEurope/1995 Ada-Europe db/conf/adaEurope/adaEurope1995.html#RybinSZ95 http://dx.doi.org/10.1007/BFb0015489