Detailed modelling of individual protostellar condensations, is important to
test the various theories. Here we present comparisons between strongly induced
collapse models with one young class-0, IRAS4A in the Perseus cloud and one
prestellar cloud observed in the Coalsack molecular cloud.Comment: IAU 237, Triggering of star formation in turbulent molecular clouds,
eds B. Elmegreen and J. Palou