by BEERS ROGER N
Year of Publication 24.04.2001

by BEERS ROGER N, SANDSTROM PAUL H
Year of Publication 18.05.2006

by BEERS ROGER N, SANDSTROM PAUL H
Year of Publication 26.05.2005

by BEERS; ROGER N
Year of Publication 06.10.1992

by BEERS; ROGER N
Year of Publication 25.02.1992

by BEERS ROGER N, BENKO DAVID ANDREW
Year of Publication 27.11.2001

by BEERS, ROGER N, KLEMMENSEN, DANIEL F
Year of Publication 15.10.1998

by HSU WEN-LIANG, HALASA ADEL F, BEERS ROGER N, SANDSTROM PAUL H, JASIUNAS CHAD A
Year of Publication 03.11.2005

by WOLSKI THOMAS PAUL, BEERS ROGER N, BENKO DAVID ANDREW
Year of Publication 11.04.2000

by BEERS ROGER N, STARINSHAK THOMAS W, BENKO DAVID ANDREW
Year of Publication 15.06.1999

by BEERS; ROGER N, KLEMMENSEN; DANIEL F
Year of Publication 09.04.1991

by BEERS, ROGER N, KLEMMENSEN, DANIEL F
Year of Publication 24.10.1990

by BEERS, ROGER N, CONGER, MARVIN T
Year of Publication 20.01.1987

by BEERS, ROGER N, CONGER, MARVIN T
Year of Publication 12.02.1980

by BEERS, ROGER N, CONGER, MARVIN T
Year of Publication 20.11.1979

by N. BEERS,ROGER, T. CONGER,MARVIN
Year of Publication 03.11.1977

by BEERS; ROGER N, CONGER; MARVIN T
Year of Publication 18.10.1977

by BEERS; ROGER N, CONGER; MARVIN T
Year of Publication 19.07.1977

by BEERS; ROGER N, HALASA; ADEL F, BENKO; DAVID A, GROSS; BILL B
Year of Publication 13.02.1996