1. On positive commutative tomonoids

   • Thomas Vetterlein

   OriginalPaper Open access 22 March 2016 Pages: 381 - 404

2. Principal congruences in weak Heyting algebras

   • Hernán Javier San Martín

   OriginalPaper 20 April 2016 Pages: 405 - 418

3. Spectra of Tukey types of ultrafilters on Boolean algebras

   • Jennifer A. Brown
   • Natasha Dobrinen

   OriginalPaper 23 March 2016 Pages: 419 - 438

4. Which self-maps appear as lattice anti-endomorphisms?

   • Stephan Foldes
   • Jenő Szigeti

   OriginalPaper 07 December 2015 Pages: 439 - 449

5. Lexicographic effect algebras

   • Anatolij Dvurečenskij

   OriginalPaper 09 February 2016 Pages: 451 - 480