ST, STH, STHT-GS, STHT-R 1979.03
ST, STHT-R diagr 1978.01
STH, STHT-GS diagr. 1978.01
STHT, STHT-GS, STHT-R 1983.09
STHT-GS 1988.09
STHT-GS 1990.06