00298nam a2200109Ia 4500082001700000100002700017245011000044260001500154300000900169500000500178700000500183  a382bT593.ME  aTintner, G. and others  aMultivariate exponential model of growth and transactions for international tradebcG. Tintner ...et.al.  an.p.cn.d.  a13p.  a  a