How can I get all properties with prefix 'abc.' from PropertyPlaceholderConfigurer

In spring context file, I use org.springframework.beans.factory.config.PropertyPlaceholderConfigurer to load several configuration files:

<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
    <property name="locations">
        <list>
            <value>a.properties</value>
            <value>b.properties</value>
            <value>c.properties</value>
        </list>
    </property>
</bean>

The a.properties, b.properties, c.propertes may have some hibernate configurations which have prefix of abc.:

abc.hibernate.show_sql=true
abc.hibernate.default_schema=myschema
abc.hibernate.xxx=xxx
abc.hibernate.xxx=xxx
abc.hibernate.xxx=xxx
abc.hibernate.xxx=xxx
abc.hibernate.xxx=xxx
abc.hibernate.xxx=xxx

Now I want to define a hibernate session factory:

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="hibernateProperties">
        <util:properties>
            <prop key="hibernate.show_sql">${abc.hibernate.show_sql}</prop>
            <prop key="hibernate.xxx">${abc.hibernate.xxx}</prop>
            <prop key="hibernate.xxx">${abc.hibernate.xxx}</prop>
            <prop key="hibernate.xxx">${abc.hibernate.xxx}</prop>
            <prop key="hibernate.xxx">${abc.hibernate.xxx}</prop>
            <prop key="hibernate.xxx">${abc.hibernate.xxx}</prop>
        </util:properties>
    </property>
</bean>

You can see I have to write the property in bean declaration again and again:

<prop key="hibernate.xxx">${abc.hibernate.xxx}</prop>

Is there any way to just tell spring to get all properties which have prefix abc.?

So I can write:

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
    <property name="hibernateProperties">
        <something prefix="abc" /> <!-- TODO -->
    </property>
</bean>

Is it possible or is there any other simple solutions for it?