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The political economy of export concentration
James, Elijah M., (1980)
Export instability and concentration in the less developed contries : a cross sectional analysis
Soutar, Geoffrey Norman, (1974)
Verkehrswege des österreichischen Aussenhandels
Friedl, Gustav O., (1971)
Export instability in Latin America : the postwar statistical record
Kingston, Jerry L., (1972)
Export instability in Latin America: The postwar statistical record
Kingston, Jerry L., (1973)
Unemployment insurance overpayments: Evidence and implications.
Kingston, Jerry L., (1986)