2 joint papers of Piotr Koszmider with Shelah

KoShSw:1086 2017-11-04 [pdf] [ps] [abstract]
Koszmider+Shelah+Swietek, There is no bound on sizes of indecomposable Banach Spaces -- Advances in Math 323 (2018) 745-783
KsSh:1015 [abstract] [arXiv:math.LO/1209.0177]
Koszmider+Shelah, Independent families in Boolean algebras with some separation properties -- Algebra Universalis 69 (2013) 305-312