David R. Downing
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David R. Downing,
2004
.
David R. Downing,
John Valasek,
1995
.
David R. Downing,
Daniel M. Martin,
1990
.
David R. Downing,
George W. Ryan,
1992
.
David R. Downing,
James D. Paduano,
1987
.
David R. Downing,
Reiner Suikat,
Kent Donaldson,
1989
.
David R. Downing,
John Valasek,
David P. Eggold,
1991
.
David R. Downing,
George W. Ryan,
1994
.
David R. Downing,
1994
.
David R. Downing,
John Valasek,
David P. Eggold,
1990
.
David R. Downing,
John Valasek,
David P. Eggold,
1992
.
David R. Downing,
Reiner Suikat,
Kent Donaldson,
1987
.
David R. Downing,
Terry A. Hammond,
Shailesh P. Amin,
1983
.
David R. Downing,
Reiner Suikat,
Kent Donaldson,
1989
.
David R. Downing,
Georga W. Ryan,
1995
.
David R. Downing,
Wayne H. Bryant,
R. Srivatsan,
1987
.
David R. Downing,
James D. Paduano,
1986
.