is the problem of whether we should define separate optimal solutions for each cell within the network, or a single optimum for the entire network. ... The problem is well illustrated by the paradox ascribed to Bertrand ( 1 907 ) concerning the length of a random chord (i.e., a chord ... On the other hand, some migration studies have explored the possibility that the geometric properties, once established, mayanbsp;...
|Title||:||The Canadian geographer. Le geographie canadien|