00290nam a2200097Ia 4500008004100000082003700041245006900078260002300147300000900170650001300179130903s9999    xx            000 0 und d  a061.6:637(540) 1971 (083.9)   L1  aHalf yearly progress report of research work, January-June 1977.  aKarnalbNDRIc1971  a79p.  aResearch