Analysis of information sources in references of the Wikipedia article "Disputed status of the isthmus between Gibraltar and Spain" in English language version.
He will be ready enough, I dare say, to acknowledge the Treaty of Utrecht to be deficient in any Particular; and I must agree with him that it really is so, in not stipulating for a proper District of Ground round about Gibraltar, beyond the Reach of Cannon Shot, as is usually granted to Garrison Towns. By this Defect, the Spaniards claim all the Land, without the Town, up to the very Walls of it ...