ANSI/ISO/IEC 8652-1995 Information Technology - Programming Languages - Ada (revised ANSI/MIL-STD-1815A-1983, American National Standard Reference Manual for the Ada Programming Language.) [1,3]
IEEE Std 1029.1 -1991, IEEE Standard for Waveform and Vector Exchange (WAVES).[2]
IEEE Std 1164-1993, IEEE Standard Multivalue Logic System for VHDL Model Interoperability (Std_logic_1164).
ANSI/ISO 8859-1 : 1987, Information processing--8-bit single-byte coded graphic character sets--Part 1: Latin Alphabet No. 1.[2,3]