00440nas a2200121 4500008004100000245008000041210006900121300001200190490000700202100003700209700002200246856005000268 1994 eng d00aDynamic calibration of price-trend parameters for commodity futures trading0 aDynamic calibration of pricetrend parameters for commodity futur a867-8770 v451 aSarsfield Cabral, José António1 aGuimaraes, R., C. uhttps://www.cipes.pt/node/1693?language=pt-pt