\label{key}
A \label command appearing in ordinary text assigns to the key the number of the current sectional unit; one appearing inside a numbered environment assigns that number to the key.
A key con consist of any sequence of letters, digits, or punctuation characters.| NOTE: | LaTeX is case sensitive. Upper- and lowercase letters are different. |
\label{klic}
Prikaz \label vlozeny do obycejneho textu prideli klici cislo soucasne sekce. Uvnitr nejakeho cislovaneho prostredi prideli nynejsi cislo.
Klic muze byt tvoren libovolnou sekvenci pismen, cislic pripadne interpunkcnich znaku.| POZOR: | LaTeX je "case sensitive", coz znamena, ze vsude rozlisuje mala a velka pismenka. |