19fc4c4fe43b25c77c2f49978e6fc45aaba96f00b544ac046182658144c0c3fb  pubsecmat_a1977v4p1.pdf
a2411c5afa83bc5cb7e80d812c2115a1f3b474bf648cd01f3d44a7ebf208fef5  pubsecmat_a1977v4p65.pdf
562c461561707bbe11699183a4a25259603eb6f1c707916e41dc1cf7fa4a81cb  pubsecmat_a1977v4p73.pdf
7a15d999f0af9bfab33605666f3a82e83b7912aeb9647193cf5d77ac5e767af9  pubsecmat_a1977v4p78.pdf