Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/2831001
Is Reference of Evighedskalender-da#Sense
Kalender van de "eeuwigdurende" soort-nl#Sense
Ikuinen kalenteri-fi#Sense
Ημερολόγιο "διαρκείας"-el#Sense
Dauerkalender-de#Sense
Calendário dito "perpétuo"-pt#Sense
Calendar of the "perpetual" type-en#Sense
Calendrier dit perpétuel-fr#Sense
Evighetsalmanacka-sv#Sense
Calendario denominado "perpetuo"-es#Sense
Calendario del genere "perpetuo"-it#Sense