The Internet Archive has digitized a microfilm copy of this work. It may be possible to borrow a copy for reading.
A alternate form of the "UNCOL diagram"
<span title="1961-03-01">1961</span>
<i title="Association for Computing Machinery (ACM)">
<a target="_blank" rel="noopener" href="https://fatcat.wiki/container/i6iajiiyxvgz3ob6jwcn2pufni" style="color: black;">Communications of the ACM</a>
</i>
Preserved Fulltext
<a target="_blank" rel="noopener" href="https://archive.org/details/sim_association-for-computing-machinery-communications_1961-03_4_3/page/142" title="read fulltext microfilm" data-goatcounter-click="serp-fulltext" data-goatcounter-title="serp-fulltext">
<button class="ui simple right pointing dropdown compact black labeled icon button serp-button">
<i class="icon ia-icon"></i>
Archive [Microfilm]
<div class="menu fulltext-thumbnail">
<img src="https://archive.org/serve/sim_association-for-computing-machinery-communications_1961-03_4_3/__ia_thumb.jpg" alt="fulltext thumbnail" loading="lazy">
</div>
</button>
</a>
<a target="_blank" rel="external noopener noreferrer" href="https://doi.org/10.1145/366199.366249">
<button class="ui left aligned compact blue labeled icon button serp-button">
<i class="external alternate icon"></i>
acm.org
</button>
</a>