McCorkle, John (November 15, 1993). Del Grande, Nancy K.; Cindrich, Ivan; Johnson, Peter B. (eds.). "Early results from the Army Research Laboratory ultrawide-bandwidth foliage penetration SAR". Underground and Obscured Object Imaging and Detection. 1942: 88–95. Bibcode:1993SPIE.1942...88M. doi:10.1117/12.160352. S2CID123322305.
Ressler, Marc (May 31, 1996). "The Army Research Laboratory ultra wideband BoomSAR". IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium. Vol. 3. pp. 1886–1888. doi:10.1109/IGARSS.1996.516828. ISBN0-7803-3068-4. S2CID62582116.
McCorkle, John (November 15, 1993). Del Grande, Nancy K.; Cindrich, Ivan; Johnson, Peter B. (eds.). "Early results from the Army Research Laboratory ultrawide-bandwidth foliage penetration SAR". Underground and Obscured Object Imaging and Detection. 1942: 88–95. Bibcode:1993SPIE.1942...88M. doi:10.1117/12.160352. S2CID123322305.
McCorkle, John (November 15, 1993). Del Grande, Nancy K.; Cindrich, Ivan; Johnson, Peter B. (eds.). "Early results from the Army Research Laboratory ultrawide-bandwidth foliage penetration SAR". Underground and Obscured Object Imaging and Detection. 1942: 88–95. Bibcode:1993SPIE.1942...88M. doi:10.1117/12.160352. S2CID123322305.
Ressler, Marc (May 31, 1996). "The Army Research Laboratory ultra wideband BoomSAR". IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium. Vol. 3. pp. 1886–1888. doi:10.1109/IGARSS.1996.516828. ISBN0-7803-3068-4. S2CID62582116.