# A Research Note on Challenges of Cross-National Aging Research: An Example of Productive Activities Across Three Countries

> Research article (Research on Aging, 2016) · cited 13× · AI/ML

**Wikidata**: [openalex:W2552443029](https://www.wikidata.org/wiki/openalex:W2552443029)  
**Source**: https://4ort.xyz/entity/a-research-note-on-challenges-of-cross-national-aging-research-an-example-of-productive-activities-across-three-countrie