Heavy Flavours in Deep Inelastic Scattering

In the talk an overview of recent measurements of charm and beauty production in deep inelastic ep collisions at HERA performed by the H1 and ZEUS experiments has been presented. Various techniques how to identify charm and beauty production are explained, which are based on different final states. The results of the measurements are compared with different QCD calculations for charm and beauty production. Double differential measurements of charm and bauty production are used to extract heavy flavour contributions and to the proton structure function F2.