by Lehto, Harry J, Johnson, Dean R. H
Published in Nature (London) (20.02.1992)

by SODERBLOM, D. R, DUNCAN, D. K, JOHNSON, D. R. H
Published in The Astrophysical journal (01.07.1991)

by Johnson, Dean R. H., Barlow, M. J., Drew, J. E., Brinks, Elias
Published in Monthly notices of the Royal Astronomical Society (15.03.1992)

by Johnson, Dean R. H
Year of Publication 1992