Batabyal, Amit; Nijkamp, Peter - European Regional Science Association - 2014
a wild organism with a certain quality at a point in time then it will never use this same organism at a subsequent … point in time. Second, we show that if our PF uses a particular organism with its quality at a point in time then it will … continue to produce the drug with the chemicals from this organism at all later points in time. Third, we show that there is a …
