Björn Steffen

The Steiner tree reoptimization problem with sharpened triangle inequality

J. Hromkovic, Hans-Joachim Böckenhauer, Tobias Mömke, 2010 .

On the Power of Advice and Randomization for the Disjoint Path Allocation Problem

Michal Forisek, Juraj Hromkovic, Hans-Joachim Böckenhauer, 2014, SOFSEM.

Advice complexity of online graph problems

Björn Christian Steffen, Björn Steffen, 2014 .

On the advice complexity of the online L(2, 1)-coloring problem on paths and cycles

Juraj Hromkovic, Maria Paola Bianchi, Hans-Joachim Böckenhauer, 2013, Theor. Comput. Sci..

Creating and Testing Textbooks for Secondary Schools

Juraj Hromkovic, Björn Steffen, Karin Freiermuth, 2008, ISSEP.

Why Teaching Informatics in Schools Is as Important as Teaching Mathematics and Natural Sciences

Juraj Hromkovic, Björn Steffen, J. Hromkovic, 2011, ISSEP.

A Short Introduction to Classical Cryptology as a Way to Motivate High School Students for Informatics

Lucia Keller, Björn Steffen, Giovanni Serafini, 2011, ISSEP.

Teaching Public-Key Cryptography in School

Dennis Komm, Lucia Keller, Björn Steffen, 2009, ISSEP.