Werner, P. A. (1975). "A seed trap for determining patterns of seed deposition in terrestrial plants". Botany. 53 (8): 810–813. doi:10.1139/b75-097.
Chabrerie, O.; Alard, D. (2005). "Comparison of three seed trap types in a chalk grassland: toward a standardised protocol". Plant Ecology. 176 (1): 101. doi:10.1007/s11258-004-0024-2.
