8Janyes E T. Information theory and statistical me- chanics [J]. Physical Review, 1957,106 (4) : 620-630.
9Phillips S J,Anderson R P, Schapire R E. Maximumentropy modeling of species geographic distributions [J]. Ecological Modelling, 2006,190: 231-259.
10Lebedal A,Dolezaloval I, Krlstkova E, et al. Acquisition and ecological characterization of Lactuca serriola L. germplasm collected in the Czech Republic, Germany, the Netherlands and United Kingdom [J]. Genetic Resources and Crop Evolution, 2007,54 ( 3 ) : 555-562.
