F. C. Ribeiro and N. M. de Carvalho, “The saturated salt accelerated ageing (SSAA) method seems to act too leniently on carrot (Daucus carota L.), lettuce (Lactuca sativa L.), and broccoli (Brassica oleracea var. italica Plenck ) seeds germination”, Científica, vol. 33, no. 2, pp. 208–212, Apr. 2008.