source: Either party may use a third party service provider for network services, provided the other party is given sixty  days prior written notice of any changes to such services.
target: Either party may use a third party service provider for network services. This is provided the other party is given sixty days prior written notice of any changes to such services.
references: Either party may use a third party service provider for network services. This is provided the other party is given sixty days prior written notice of any changes to such services.