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The radio spectrum is a scarce, valuable and thus expensive resource. Creating a "spectrum market" is a possible solution to distribute spectrum efficiently. In this paper we propose an auction method with a pricing scheme developed in a dynamic spectrum allocation (DSA) framework that handles interference issues in a flexible way. We take interference into account as a source of spectrum utilization degradation, captured by the so-called geographical coupling and technology coupling parameters. We propose a one-shot multi-bid pricing scheme that takes the special properties of DSA into account. For an efficient spectrum brokering, there should be a strong incentive for users to accommodate each other. The idea behind the proposed pricing method is to charge providers that do not tolerate others and cause large interference to other regions. A simulation example is also given to highlight the achievable gains using our proposed solution.