a2a411e6199477ad69edfed686f5c31b44800ecb3d3459d5d47b1a1b65c7c7ed  placelenvS_a2016v39n1.pdf
b9cd96540bc6a873b43a1ee114b52fefd6af583a7c1aa79f91dc19c6e9eb0764  placelenv_a2016v39n1.pdf