Existence and uniqueness theorems for the solution of an inverse problem for the transport equation
1963 ◽
Vol 4
(11)
◽
pp. 1376-1385
◽
1990 ◽
Vol 10
(2)
◽
pp. 185-199
◽
1973 ◽
Vol 97
(1)
◽
pp. 1-82
◽