@article {103,
	title = {Digital Surface Models for GNSS Mission Planning in Critical Environments},
	journal = {Journal of Surveying Engineering},
	year = {2013},
	pages = {null},
	issn = {0733-9453},
	doi = {10.1061/(ASCE)SU.1943-5428.0000119},
	url = {http://ascelibrary.org/doi/abs/10.1061/\%28ASCE\%29SU.1943-5428.0000119},
	author = {Ackermann, S. and Angrisano, A. and Del Pizzo, S. and Gaglione, S. and Gioia, C. and Troisi, S.}
}
