Ken Miyashita Satoshi Matsuoka Shin Takahashi Akinori Yonezawa Tomihisa Kamada Declarative Programming of Graphical Interfaces by Visual Examples. 107-116 1992 ACM Symposium on User Interface Software and Technology http://doi.acm.org/10.1145/142621.142634 db/conf/uist/uist1992.html#MiyashitaMTYK92