@article{f.colombo1997,
	author="F. Colombo and S. Cora and F. Francesconi and P. Gallina and R. Oboe and A. Rossi",
	title="A programmable collimator for radiotherapy",
	journal="physica medica",
	year="1997",
	pages="443-449",
	volume="13",
	issn="1120-1797"
}