Can. 201

§ 1: c. 35.
§ 2: c. 35.

A.P. Marcello, The Computation of Time: A Canonical Overview, in Studia canonica 51 (2017) 207-250; G. Montini, Commento a un canone. Il tempo utile (can. 201 § 2), in QDE  16 (2003) 81-101.

Communicationes 3 (1971) 93; 6 (1974) 53; 9 (1977) 237; 19 (1987) 193-202; 20 (1988) 95-97, 118-119; 22 (1990) 263-264; 23 (1991) 52-53, 70-71, 106-107, 123, 269-270, 297-298.