“…Curnow, also examined in depth the model of the LTG study. Both in the book and in an article published in the same year (Cole and Curnow, 1973a) they emphasized several points that they described as weaknesses of the LTG model. In particular, the inability of the model to 'simulate backwards' ('backcasting') when forced to do so (Cole and Curnow, 1973b).…”