Ritzinger, R. et al. 2014. Effect of plant spacing on the yield of the yellow passion fruit at Viamão, RS, Brazil. Pesquisa Agropecuaria Brasileira. 22, 8 (Apr. 2014), 809–815. DOI:https://doi.org/10.1590/S1678-3921.pab1987.v22.14871.