/**
 * URL Resolution Module
 *
 * Resolves URLs from CslItem fields (DOI, URL, PMID, PMCID, additional_urls).
 * Priority order: DOI > URL > PMID > PMCID > additional_urls
 */
import type { CslItem } from "../../core/csl-json/types.js";
export type UrlType = "doi" | "url" | "pubmed" | "pmcid";
/**
 * Resolve all URLs from a CslItem in priority order.
 * DOI > URL > PMID > PMCID > custom.additional_urls
 */
export declare function resolveAllUrls(item: CslItem): string[];
/**
 * Resolve the best (default) URL from a CslItem by priority.
 * Returns the first available URL in priority order, or null if none.
 */
export declare function resolveDefaultUrl(item: CslItem): string | null;
/**
 * Resolve a URL of a specific type from a CslItem.
 * Returns null if the requested type is not available.
 */
export declare function resolveUrlByType(item: CslItem, type: UrlType): string | null;
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