Spatial Asymmetric Two dimensional Continuous Abelian Sandpile Model
  We insert some asymmetries in the continuous Abelian sandpile models, such as directedness and ellipticity. We analyze probability distribution of different heights and also find the field theory corresponding to the models. Also we find the fields associated with some height variables. 
N. Azimi-Tafreshi, H. Dashti-Naserabadi, S. Moghimi-Araghi