An Improved Fast Multipole Algorithm for Potential Fields.
1999 ◽
Vol 36
(2)
◽
pp. 629-666
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1998 ◽
Vol 19
(6)
◽
pp. 1804-1826
◽
2012 ◽
Vol E95-C
(1)
◽
pp. 71-78
◽
2006 ◽
Vol 20
(15)
◽
pp. 2189-2200
◽