Interactive https://philipp-brauner.de/ en Explore Systems Thinking with Loopy! https://philipp-brauner.de/node/102 <span property="schema:name" class="field field--name-title field--type-string field--label-hidden">Explore Systems Thinking with Loopy!</span> <span rel="schema:author" class="field field--name-uid field--type-entity-reference field--label-hidden"><span lang="" about="/user/1" typeof="schema:Person" property="schema:name" datatype="">philipp</span></span> <span property="schema:dateCreated" content="2018-02-27T17:15:55+00:00" class="field field--name-created field--type-created field--label-hidden">Tue, 02/27/2018 - 18:15</span> Tue, 27 Feb 2018 17:15:55 +0000 philipp 102 at https://philipp-brauner.de