doc update

Author: rflamary

docs/source/readme.rst

@@ -10,7 +10,8 @@ machine learning.
 It provides the following solvers:
 
 -  OT solver for the linear program/ Earth Movers Distance [1].
--  Entropic regularization OT solver with Sinkhorn Knopp Algorithm [2].
+-  Entropic regularization OT solver with Sinkhorn Knopp Algorithm [2]
+   and stabilized version [9][10].
 -  Bregman projections for Wasserstein barycenter [3] and unmixing [4].
 -  Optimal transport for domain adaptation with group lasso
    regularization [5]
@@ -148,5 +149,12 @@ preprint arXiv:1510.06567.
 for discrete optimal transport", Neural Information Processing Systems
 (NIPS), 2016.
 
+[9] Schmitzer, B. (2016). Stabilized Sparse Scaling Algorithms for
+Entropy Regularized Transport Problems. arXiv preprint arXiv:1610.06519.
+
+[10] Chizat, L., Peyré, G., Schmitzer, B., & Vialard, F. X. (2016).
+Scaling algorithms for unbalanced transport problems. arXiv preprint
+arXiv:1607.05816.
+
 .. |Documentation Status| image:: https://readthedocs.org/projects/pot/badge/?version=latest
    :target: http://pot.readthedocs.io/en/latest/?badge=latest