source: This Agreement may only be amended by a writing specifically referencing this Agreement which has been signed by authorized representatives of the parties, which shall be as stated below.
target: This Agreement may only be amended by a writing. The writing must specifically reference this Agreement. The Agreement must have been signed by authorized representatives of the parties. The authorized representatives of the parties shall be as stated below.
references: This Agreement may only be amended by a writing. The writing must specifically reference this Agreement. The Agreement must have been signed by authorized representatives of the parties. The authorized representatives of the parties shall be as stated below.