NB 28, spread 1 ... 28 ... Corinth:Notebook:28
ΝΝ-28 ... ΝΝ-28-1 ... ΝΝ-28-1
28 29 ... NB 1, spread 18 (pp. 28 - 29) ... 1 ... Corinth:Notebook:1
48 49 ... NB 1, spread 28 (pp. 48 - 49) ... 1 ... Corinth:Notebook:1