(a) this Agreement and the Transaction Documents contain the entire agreement and agreement of the Parties regarding the sale and purchase of the Sale Shares and supersede and delete all prior agreements between the Parties with respect to the Sale and Purchase; „This Agreement contains the final and complete agreement and understanding between the parties and constitutes the complete and exclusive statement of its terms. This Agreement supersedes all prior agreements and arrangements, whether oral or written, in this context. In summary, parties should ensure that they are clear in advance about what has been included and excluded before it is executed. If so, this should be done by making explicit reference to this agreement and integrating it into the new treaty. If this has been done correctly, a whole contractual clause will not exclude it. Although MOs are rarely visible in the multilateral field, transnational air agreements are in fact soft. Problems often arise when disagreements about the importance and impact of such contracts or agreements arise and when a party tries to look at itself outside the terms of the contract to base a claim, defense or argument. . . .