\input zb-basic
\input zb-matheduc
\iteman{ZMATH 1987k.00853}
\itemau{Robaina, J.V.}
\itemti{Relative umidity of the air. Umidade relativa do ar. Relative Luftfeuchtigkeit.}
\itemso{Bol. Tec. PROCIRS. (Jul-Sep 1985) v. 1(3) p. 8-11.}
\itemab

\itemrv{~}
\itemcc{M53 M93}
\itemut{Physics; Meteorology; Lower Secondary; Diagrams; ; Physik; Meteorologie; Sekundarstufe 1; Diagramm}
\itemli{}
\end