div class=trans-pagebuttonPage 1button div class=trans-image a href=https:reader043fdocumentsinreader043viewer20220124166171835784945e59d13ab9dehtml5page1jpg target=_blank amp-img class=trans-thumb alt=Page 1: TUT4 Open and closed in Rn-1 src=https:reader043fdocumentsinreader043viewer20220124166171835784945e59d13ab9dehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divpTUT4_Open_and_clos…p pTUT4_Open_and_closed_in_Rn-1ThursdayFebruary42021 09:04pdiv