@ARTICLE{JVLC04, 
	author = {Giuseppe Della Penna and  Benedetto Intrigila and  Sergio Orefice},
	title = {An Environment for the Design and Implementation of Visual Applications}, 
	doi = {10.1016/j.jvlc.2004.03.002},
	journal = {International Journal of Visual Languages and Computing},
	editor = {Elsevier},

	pages = {439--461},
	year = {2004},
	month = {5},
	volume = {15},
	number = {6}
	
}