Art. 53, 54 Abs. 2 and 59 OG; value in dispute in actions concerning recurring lease payments. Art. 54 Abs. 2 OG on the capital value of recurring performances applies only where the right to the recurring performance is disputed as such; if only a single instalment is contested, the amount in dispute is determined by that instalment alone under Art. 53 OG. The aggregate of future instalments is not relevant in such a case. If the resulting amount does not reach the statutory minimum of Art. 59 OG, the federal appeal is inadmissible (consid. on valuation of the claim).