共 37 条
[31]
*STATACORP LP, 2009, STAT BAS REF MAN REL
[32]
Statistische Amter der Lander (FDZ) (Statistical Offices of the German Federal States), 2009, AFID PAN AGR MET ON
[33]
Stern N., 2008, AM EC REV PAPERS P, V98, P2
[34]
Trivedi PK., 2005, Microeconometrics: methods and applications, DOI DOI 10.1017/CBO9780511811241
[36]
Wendland F., 2009, ATLAS NITRATSTROM BU, P25
[37]
Wooldridge J.M., 1995, ADV ECONOMETRICS QUA, P66