Jan Martin Larsen
... that cartographer Jan Martin Larsen was a pioneer in the development of the specialized orienteering map?
... that <a class="mw-redirect" href="./Cartographer" id="mwEEI" rel="mw:WikiLink" title="Cartographer">cartographer</a> <b id="mwEEM"><a href="./Jan_Martin_Larsen" id="mwEEQ" rel="mw:WikiLink" title="Jan Martin Larsen">Jan Martin Larsen</a></b> was a pioneer in the development of the specialized <a href="./Orienteering_map" id="mwEEU" rel="mw:WikiLink" title="Orienteering map">orienteering map</a>?