Business insurances as an element of sustainable development of small and medium enterprises in PolandNatalia Pawlak, Piotr Oskar Czechowski, Tomasz Czuba, Aneta Oniszczuk-Jastrząbek and Artur BadydaSHS Web Conf., 57 (2018) 01024DOI: https://doi.org/10.1051/shsconf/20185701024