3.5 Cash and cash equivalents and restricted cash
Cash is measured at nominal value and consists of non-interest bearing bank deposits. Cash equivalents consist principally of short-term bank deposits and fixed rate investments, both with maturities of three months or less at the acquisition date and are recorded at acquisition cost plus interest income not yet received, which is similar to market prices.
The Company also maintains restricted cash held as collateral to meet certain contractual obligations (see Note 9.2). Restricted cash is presented within other current financial assets given that the restrictions are short-term in nature.