SCIMA valintakori viitteet

lkm: 2
1.
Operations Research
1981 : JUL-AUG, VOL. 29:4, p. 763-786
1981 Rosenthal, R. E.
2.
Informacion Comercial Espanola
1998 : FEB,768, p. 89-96
1998 Congreso Nacional de Turismo,
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