Photoacoustic technique applied to ethylene emission in passion fruit seedlings: An experimental approach T. Pereira, M. Baptista-Filho, S.F. Corrêa, J.G. de Oliveira, M.G. da Silva et H. Vargas J. Phys. IV France, 125 (2005) 865-867 DOI: 10.1051/jp4:2005125200