TY - JOUR T1 - Modeling Mental Spatial Reasoning About Cardinal Directions A1 - Schultheis, Holger A1 - Bertel, Sven A1 - Barkowsky, Thomas JA - Cognitive Science Y1 - 2014 VL - 38 IS - 8 SP - 1521 EP - 1561 M2 - doi: 10.1111/cogs.12125 ER -