How to properly include fonts in rails?

Question

css

Rails 3.2
Everywhere in the project such code is used, I do it for my font - it is not displayed.
assets/stylesheets/slick/slick-theme.css

/* Icons */
@font-face {
    font-family: 'slick';
    font-weight: normal;
    font-style: normal;

    src: asset-url('slick.eot', fonts);
    src: asset-url('slick.eot?#iefix', fonts) format('embedded-opentype'),
        asset-url('slick.woff', fonts) format('woff'),
        asset-url('slick.ttf', fonts) format('truetype'),
        asset-url('slick.svg#slick', fonts) format('svg');
}

Maybe just because of another nesting problem? how to write the path? although the file gives assets/slick.eot