Kempe, S. ; Suckstorff, K. (2009)
Josef Anton Nagel and his 1748 manuscript about his cave expedition to Carniola (Slovenia) and Moravia (Czech Republic).
Konferenzveröffentlichung, Bibliographie

Kempe, S. ; Hubrich, H.-P. ; Suckstorff, K. (2006)
The history of Postojnska jama : the 1748 Joseph Anton Nagel inscriptions in jama near Predjama and Postojnska jama.
In: Acta Carsologica, 35 (2-3)
doi: 10.3986/ac.v35i2-3.237
Artikel, Bibliographie

Kempe, S. ; Hubrich, H.-P. ; Suckstorff, K. (2006)
The history of the 1833 Fercher Survey, Postojnska jama, continues : An additional document and newly discovered inscriptions.
In: Acta Carsologica, 35
Artikel, Bibliographie

Kempe, S. ; Hubrich, H.-P. ; Suckstorff, K. (2006)
The story of the 1833 Fercher Survey, Postojnska jama, continues: An additional document and newly discovered inscriptions.
In: Acta Carsologica, (35/1)
Artikel, Bibliographie