@article{10_4064_sm188_1_1,
     author = {R. L. Hudson and S. Pulmannov\'a},
     title = {Deformation  coproducts and differential maps},
     journal = {Studia Mathematica},
     pages = {1--16},
     publisher = {mathdoc},
     volume = {188},
     number = {1},
     year = {2008},
     doi = {10.4064/sm188-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm188-1-1/}
}