US venture capital group, ADVENT INTERNATIONAL, has launched a friendly take-over bid of EUR 162 million (6.10 euros per share) of Spanish group, PR - PARQUES REUNIDOS, (turnover of EUR 84 million over the first nine months of the tax year), which have around ten leisure parks. PLANETA and DE AGOSTINI, which has a 31% stake, NUTREXPA (10, 22%), SACRESA (5.9%), SCH (5.23%) and IBERSOL (5.06%) are committed to not selling their shares or negotiating with other contenders.