Editor  Thomas B. Johansson , Henry Kelly , Amula K. N. Reddy , Robert Williams , Laurie Burnham , Contributions by  Allen M. Barnett , Eldon Boes , Sigurd Wagner , Charles E. Wyman , Ken Zweibel , Alan Douglas Poole , Joan M. Ogden , Susan M. Hock , Richard Dive , David Kearney , Pascal de Laquil , Carl J. Weinberg , Don R. Smith , Joseph J. Iannucci , Don J. Stevens , Gautum Dutt , Martin Green , Adriaan C. Van Haandel , David E. Carlson , Jose Roberto Moreira , Lourival C. Monaco , Jose Goldemberg , Niels I. Meyer , Michael J. Grubb , Joachim Nitsch , H. S. Mukunda , P. Rajabapaaiah , N. H. Ravindranath , S. Dasappa , S. Jayakumar , Civis G. Palmerini , Gatze Lettinga , Antonio Luque , Roger Price , Frank Rosillo Calle , James E. Cavanaugh , Jeremy Woods , John H. Clarke , Richard Diver , Kay Firor , Michael Geyer , U. Shrinivasa , Roberto Vigotti , Norman D. Hinman , Richard L. Bain , Al Cavallo , Eric D. Larson , Isais C. Macedo