@inbook {KNZ00698, title = {Success of C4 photosynthesis in the field: lessons from communities dominated by C4 plants}, booktitle = {C4 Plant Biology}, year = {1999}, pages = {251 -283}, publisher = {Academic Press}, organization = {Academic Press}, address = {New York}, keywords = {LTER-KNZ}, author = {Alan K. Knapp and Medina, E.}, editor = {Sage, R.F. and Monson, R.K.} }