by Thomas, Robert H., Abdalati, Waleed, Akins, Torry L., Csatho, Beata M., Frederick, Earl B., Gogineni, Siva P., Krabill, William B., Manizade, Serdar S., Rignot, Eric J.
Published in Geophysical research letters (01.05.2000)

by Bredow, J., Gogineni, S.P., Gow, A.J., Blanchard, P.F., Moore, R.K.
Published in IEEE journal of oceanic engineering (01.07.1989)