itemMatrixID's vs itemAttributeSetID
if i do a json request for products, i finde products (with different measures for ex.) whith the same itemMatrixID's
if i do a request for matrices and look for that specific itemMatrixId, i find info i need on this matrix, like a description and all values in this matrix
but how can i connect this products to one measure in a matrix?
is it through the itemAttributeSetID? and wich id the url for this json
or is there another way i don't see?