1. G. Böhm, Doi-Hopf modules over weak Hopf algebras, Communications in Algebra 28 (2000), 4687–4698.
2. G. Böhm, Comodules over weak multiplier bialgebras, International Journal of Mathematics 25 1450037 (2014), DOI: 10.1142/S0129167X14500372.
3. G. Böhm, S. Caenepeel and K. Janssen, Weak bialgebras and monoidal categories, Communications in Algebra 39 (2011), 4584–4607.
4. G. Böhm, J. Gómez-Torrecillas and E. López-Centella, Weak multiplier bialgebras, Transactions of the American Mathematical Society, in press; preprint available at http://arxiv.org/abs/1306.1466
5. G. Böhm and J. Gómez-Torrecillas, Firm Frobenius monads and firm Frobenius algebras, Bulletin Mathématique de la Société des Sciences Mathématiques de Roumanie 56(104) (2013), 281–298.