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Unique tors in the "Skalisty Jar Libberta" reserve in Pojezierze Myśliborskie (Myślibórz Lakeland)

Urban, Jan

1999

Journal/Article

Outcrops of Triassic sedimentary rocks proposed for protection in Chrzanów district (Silesian Upland)

Urban, Jan

1997

Journal/Article

Zbigniew Rubinowski (1929-1997)

Urban, Jan

1997

Journal/Article

Conservation and popularization of geological heritage in Hungary

Urban, Jan

1994

Journal/Article

The protection of some specimens of inanimate nature in the Holy Cross region which have already been subjected to legal protection or are worthy of protection

Urban, Jan

1989

Journal/Article

Pokłosie po pracy o "Mieczysławskiej"

Urban, Jan (1874–1940)

Text

Documentary sites of loess in Kozubów Landscape Park

Alexandrowicz, Witold Urban, Jan

2002

Journal/Article

Crystal Caves in the Wieliczka Salt Mine

6. Current state of the Crystal Caves' preservation

Alexandrowicz, Zofia Urban, Jan

2000

Journal/Article

II Symposium of Inanimate Nature Conservation in Poland (Wieliczka, Apr. 6-8, 1995)

Otęska-Budzyn, Janina Urban, Jan

1995

Journal/Article

Crystal Caves in the Wieliczka Salt Mine

9.7. Contemporary changes in the crystal morphology and walls' relief of the caves

Urban, Jan Otęska-Budzyn, Janina

2000

Journal/Article

Crystal Caves in the Wieliczka Salt Mine

9.3. Temperature of halite crystals

Urban, Jan Otęska-Budzyn, Janina

2000

Journal/Article

Geoconservation of the Beskid Sądecki Mountains and the Sącz Basin, Polish Carpathians

VI. Documantation of inanimate nature areas and objects

Alexandrowicz, Zofia Margielewski, Włodzimierz Urban, Jan Gonera, Małgorzata

1996

Journal/Article

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