[turba] about private address book

[alex]

I could not find where the entry was stored when i add entry to "Private 
Address Book". Can someone tell me what is the storage it store?

Here are my "Private Address Book" setting in turba/source.php
==============================================================
$cfgSources['prefs'] = array(
 'title' => 'Private AddressBook',
    'type' => 'prefs',
    'params' => array(
        'name' => 'prefs'
    ),
    'map' => array(
        '__key' => 'id',
        '__type' => '_type',
        '__members' => '_members',
        'name' => 'name',
        'email' => 'mail',
        'alias' => 'alias'
    ),
    'search' => array(
        'name',
        'email',
        'alias'
    ),
    'strict' => array(
        'id'
    ),
    'public' => false,
    'readonly' => false,
    'export' => true);


Alex