Analysis of information sources in references of the Wikipedia article "Danh sách hang động Ba Lan" in Vietnamese language version.
The shaft gets a name Studnia Wazeliniarzy, coming from guys who, for the protection of body parts exposed to the destructive influence of the microclimate of caverns, routinely used vaseline.
The shaft gets a name Studnia Wazeliniarzy, coming from guys who, for the protection of body parts exposed to the destructive influence of the microclimate of caverns, routinely used vaseline.
