004150000a2200109000450024501520000004100130015270000240016570000300018970000230021910000240024277300390026610aTemporal and vertical variations in phytoplankton community structure and its relation to some morphometric parameters of four colombian reservoirs0 aInglés1 aBicudo, C. E. de M.1 aRoldán Pérez, Gabriel1 aGarcía L., L. C.1 aRamírez R., J. J.1 tCaldasia345h1q108-126d2000g22