"Commodity exchanges Mathematical models." . . . . . . . . . . . . "Commodity profits through trend trading a price model and strategies"@en . . . . . . "Commodity profits through trend trading : a price model and strategies"@en . "Commodity profits through trend trading : a price model and strategies" . "Preistheorie." . . "Mathematisches Modell." . . "Handel." . . "Commodity exchanges." . . . .