A Functional Language for the Specification of Complex Tree Transformations.

Reinhold Heckmann A Functional Language for the Specification of Complex Tree Transformations. 175-190 1988 conf/esop/1988 ESOP db/conf/esop/esop88.html#Heckmann88 http://dx.doi.org/10.1007/3-540-19027-9_12